Kojima Genes Men's N-3B-Inspired Denim Flight Jacket, Insulated Hooded Parka with 100% Cotton Shell, Faux Fur Trim and Two-Way YKK Zipper (KGR-505, Dark Indigo)
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Kojima Genes Men's N-3B-Inspired Denim Flight Jacket, Insulated Hooded Parka with 100% Cotton Shell, Faux Fur Trim and Two-Way YKK Zipper (KGR-505, Dark Indigo)
Kojima Genes
This men's insulated denim N-3B flight jacket is made in China and produced by Kojima Genes, a Japanese brand based in Kojima, Kurashiki, Okayama, an area known for its denim industry. Taking inspiration from the U.S. Air Force N-3B cold-weather flight jacket, this model brings the design's substantial hood, protective front closure, practical pockets, and longer body into an outerwear piece made with a 100% cotton dark indigo denim shell. Nylon lining and polyester insulation are combined with a polyester pile-lined hood, permanently sewn-on faux fur trim, concealed rib-knit cuffs, and a two-way YKK front zipper. Raglan sleeves, denim elbow reinforcements, an internal waist drawcord, and separate adjustments for the hood opening and depth complete the construction. The full body and sleeves create the recognizable volume of an N-3B, while the denim contributes a textured surface, a weighty feel, and gradual fading with wear. Together, these features bring the practical character of military outerwear and the evolving appearance of denim into a hooded coat for everyday cold-weather casual wear.
Size and Fit Guide:
Gender: Men.
Fit: This jacket has a classic N-3B silhouette, with fullness through the chest, torso, and sleeves and a body length that extends over the waist and hips. The substantial denim shell, insulating fill, and large hood give it a pronounced three-dimensional shape and a noticeably weighty feel when worn. The hem falls naturally from the body, while the internal waist drawcord allows you to adjust the room around the torso and the shape of the waist.
Raglan sleeves join the body along diagonal seams running from the neckline toward the underarms. Without conventional seams at the shoulder tips, the outer line flows smoothly from the shoulder area into the sleeves. Each sleeve opening combines an outer denim sleeve end with an inner rib-knit cuff. The denim opening has no button or other opening fastener, while the concealed knit stretches around the wrist to help reduce drafts.
Although the exterior has the fullness associated with an N-3B, the thickness of the insulation and lining occupies some of the space inside. The actual fit therefore has less room than the flat chest-width measurement alone might suggest. With continued wear, the denim gradually becomes more supple and settles into a more naturally broken-in feel.
As a general starting point, you may wish to consider the same tagged size you usually wear in U.S. or European jackets. The most suitable size may vary depending on the brands you normally wear, your body type, the thickness of your layers, and your preferred amount of room.
Because the jacket combines substantial denim, insulation, and lining, it may fit differently from a lightweight jacket with the same flat chest width. Please measure a similar insulated jacket or coat that fits you well, ideally one with comparable thickness and construction, and compare its chest width, body length, and center-back sleeve length with the measurements below.
Our model wears Tagged Size M. He is 175 cm / approximately 5'9" tall, weighs 59 kg / approximately 130 lbs, and has a 91 cm / approximately 36" chest. For reference, he normally wears a US/EU size S/36. On him, size M leaves room through the chest and sleeves while extending over the waist and hips to create the characteristic N-3B outline.
The following measurements show the garment itself laid flat, not the wearer's body measurements. Width is the straight-across measurement of the jacket and does not represent the garment's full chest circumference or the wearer's chest measurement.
In inches
Tagged Size M
Width: 22.8" / Length: 29.5"
Sleeve: 32.7"
Tagged Size L
Width: 24.0" / Length: 30.3"
Sleeve: 33.5"
Tagged Size XL
Width: 25.6" / Length: 30.7"
Sleeve: 34.6"
Tagged Size XXL
Width: 27.2" / Length: 31.5"
Sleeve: 35.4"
In centimeters
Tagged Size M
Width: 58cm / Length: 75cm
Sleeve: 83cm
Tagged Size L
Width: 61cm / Length: 77cm
Sleeve: 85cm
Tagged Size XL
Width: 65cm / Length: 78cm
Sleeve: 88cm
Tagged Size XXL
Width: 69cm / Length: 80cm
Sleeve: 90cm
[How We Measure the Actual Garment]
Width (Chest Width / Half Chest): Measured with the jacket laid flat, straight across from side to side approximately 3cm (about 1.2 in.) below the underarms. This is a flat width measurement, not the garment's full chest circumference or the wearer's chest measurement.
Length (Body Length): Measured down the back from the seam where the hood joins the body to the bottom edge of the hem. The height of the hood is not included.
Sleeve (Center-Back Sleeve Length): Measured from the center back at the seam where the hood joins the body, across the shoulder area, and down to the outer edge of the denim sleeve opening. The measurement ends at the outer denim sleeve edge, rather than at the concealed rib-knit cuff inside.
Shoulder Width: Not measured. This jacket uses raglan sleeves without conventional seams at the shoulder tips, so a standard shoulder-width measurement is not provided. Please use the chest width, body length, and center-back sleeve length as the primary references when comparing sizes.
Made in China.
- Brand new and unused.
- All measurements are taken by hand with the garment laid flat, using a measuring tape.
- Slight measurement differences may occur due to individual garment variations and the measuring method.
- Actual color may vary slightly from the photos due to lighting conditions and individual screen settings.
A Denim Interpretation of the N-3B Flight Jacket
The Denim N-3B Flight Jacket by KGR takes its design from the N-3B, a hooded flight jacket associated with U.S. Air Force cold-weather clothing. Kojima Genes reinterprets its distinctive proportions and practical details with a cotton denim shell, combining military outerwear construction with the rugged surface character of denim.
The large hood surrounds the head and neck, a protective outer flap covers the front zipper, and pockets at the upper front, waist, and left sleeve retain the recognizable arrangement of an N-3B. Insulating fill is enclosed between the shell and lining, giving the body and sleeves warmth and fullness. These details preserve the design's substantial military appearance while adapting it to everyday casual wear.
Gradual Fading and a Naturally Broken-In Feel
Repeated wear gradually softens the denim and allows it to settle more naturally around the body. As the fabric bends and rubs during use, creases, localized fading, and wear marks develop across the initially dark surface.
These changes add contrast and depth to the fabric over time. Their location and intensity depend on how the jacket is worn and cared for, allowing the denim to develop an individual appearance through use.
Substantial 100% Cotton Dark Indigo Denim Shell
The shell is woven from 100% cotton, with indigo-dyed warp yarns running lengthwise and ecru-toned weft yarns running across the fabric. Fine glimpses of the lighter weft appear within the dark indigo face, introducing tonal variation throughout the weave.
Natural irregularities in the yarns give the surface subtle variations in texture. Together with the contrast between the dark warp and lighter weft, these details produce the depth and rugged appearance associated with traditional denim workwear.
The denim has a firm, substantial hand with enough body to support the jacket's shape, while avoiding an excessively rigid feel. Its initially structured character gradually becomes more supple with wear, allowing the shell to develop a more familiar, broken-in feel without losing the visible texture of the woven cotton.
Sage-Green 100% Nylon Body Lining
The body is lined with 100% nylon fabric in a muted, gray-toned sage green. Its smooth surface helps the jacket slide over the layers worn underneath, reducing catching and friction when putting it on, taking it off, or moving while wearing it.
The subdued green lining contrasts with the dark indigo denim shell. When the front is open, this inner color adds to the flight jacket's military character while visually distinguishing the smooth lining from the textured outer fabric.
100% Polyester Insulating Fill
Polyester insulation is enclosed between the outer denim and the lining. The fill adds warmth and thickness while giving the body and sleeves the rounded volume characteristic of an insulated N-3B.
The loft of the insulation and the firm hand of the denim work together to support the jacket's substantial three-dimensional shape. This layered construction also contributes to its weighty feel and occupies some of the interior space, which is why the exterior measurements alone do not fully describe the room available when worn.
Two-Way YKK Front Zipper
The front closes with a YKK zipper fitted with two sliders, allowing the opening to be adjusted from both the top and the bottom. With the zipper fastened, the lower slider can be raised to open the hem area independently of the upper opening.
Opening the lower portion can ease pulling across the abdomen and hips when sitting, allowing the longer front panels to move more freely. This can also reduce strain on the surrounding denim and zipper by giving the lower body additional room to spread. The same adjustment lets you change the lower-front silhouette or reveal part of the clothing worn underneath.
Inner and Outer Denim Storm Flaps
An internal denim wind flap runs vertically beside the zipper on the wearer's right front panel. When the zipper is closed, this strip of fabric lies behind the front opening, creating an additional layer between the zipper and the inside of the jacket.
An outer storm flap is attached on the wearer's left side and carries fastening loops. After closing the zipper, these loops can be secured over the buttons on the right front panel, bringing the flap across the zipper from the outside. The layers of denim on both sides of the closure help reduce wind entering through the zipper teeth and the meeting edges of the front opening.
The lower end of the outer flap also has a snap that fastens to a corresponding snap on the wearer's left front panel. Together with the loop-and-button fastenings, this additional fastening point helps control the position of the long front flap.
High Front Closure Extending into the Hood
The front zipper continues upward to the area where the hood's faux fur trim is attached. Closing it to the top brings the front edges of the hood upright around the neck and face, increasing coverage and helping reduce exposure to cold drafts.
Lowering the zipper opens the front of the hood so it can spread into a broad, collar-like shape with the pile lining visible. The zipper position therefore changes both the amount of coverage around the neck and the way the hood frames the upper body.
Paneled Denim Hood with Polyester Pile Lining and Fixed Faux Fur Trim
The hood uses the same denim as the body, with multiple shaped panels sewn together to create a three-dimensional form around the head. Its interior is lined with 100% polyester pile, providing a soft, textured surface where the hood rests against the head and neck.
Long-pile faux fur made from 100% polyester runs around the hood opening, adding fullness around the face. The trim is sewn directly to the hood and cannot be removed. Both the inner pile and the outer faux fur are synthetic, offering comparatively straightforward care relative to natural fur, while still requiring the handling specified on the garment's care label.
Adjustable Hood Opening with Reinforced Drawcord Exits
A drawcord runs around the hood opening so its fit around the face can be adjusted. Square reinforcement pieces are sewn at the cord exits on both sides, supporting the areas where the cord passes through the fabric. Pulling the cord reduces the opening and changes how closely the front of the hood sits around the head and face.
Rear Hood Depth Adjustment with Denim Straps and a Metal Buckle
A separate adjustment runs vertically along the outside of the hood. It consists of two denim straps connected by a metal buckle, with the base of each strap sewn to the hood itself.
Changing the length of the strap passing through the buckle draws the attachment points closer together or allows them to sit farther apart. This changes how the hood fabric folds, adjusting its rearward projection and the depth of the hood when worn. The rear strap and the drawcord around the face operate independently, allowing the opening and the overall depth to be adjusted separately.
Two-Piece Raglan Sleeves with Denim Elbow Reinforcements
The sleeves join the body along diagonal raglan seams that extend from the neckline toward the underarms. This construction avoids a conventional sleeve-attachment seam at the shoulder tip and creates a smooth outer line from the shoulder area into the upper arm.
Each sleeve is assembled from two fabric panels joined to form the sleeve tube. Additional pieces of matching denim are laid over and sewn to the elbow areas of both sleeves, adding reinforcement at these points while retaining the same fabric character as the rest of the shell.
Concealed Stretch Rib-Knit Cuffs
The sleeve ends combine an outer denim opening with a separate rib-knit cuff positioned inside. No buttons or other opening fasteners are fitted at the denim sleeve ends. The outer denim covers the knit, helping protect it from abrasion and snagging during wear.
The inner cuffs are made from 98% polyester and 2% spandex (polyurethane). Their knitted structure and elastic fiber content allow them to stretch around the wrists, reducing the gaps at the sleeve openings. This helps limit cold air entering at the wrists and warm air escaping from inside the sleeves.
Nearly Straight Hem with N-3B Coat Proportions
The hem follows an almost straight horizontal line and is not gathered into a rib-knit waistband. It retains the width of the lower body and extends over the hips, allowing the denim to fall naturally into the longer, coat-like outline associated with an N-3B.
Internal Waist Drawcord
A drawcord runs around the inside of the body at waist level, with accessible cord sections on the left and right. Tightening it reduces the fullness around the torso and brings definition to the waist, while loosening it allows the body to retain more of its natural volume.
Because the adjustment is positioned inside the jacket, the cord does not hang across the exterior denim. This provides a way to vary the silhouette while keeping the outer surface visually uncluttered.
Slanted Upper Front Pockets with Two Snap Closures
The two upper front pockets sit across the chest-to-abdomen area and are accessed through slanted openings set into the front panels. On each side, the upper end of the opening sits closer to the center front, while the lower end angles outward toward the side of the body. This orientation makes the openings accessible when sliding the hands into the pockets.
Denim welts finish the edges of the openings. Each pocket has two pairs of mating snaps, allowing the opening to be secured at an upper and a lower point. These fastenings help keep the pocket mouth from remaining open when it is not in use.
Lower Flap Pockets with Triangular Cowhide Reinforcements
The lower front pockets have horizontal openings covered by denim flaps. Each flap has rounded lower corners and a centrally positioned snap that holds it over the pocket entrance. Lifting the flap reveals a horizontal opening leading into the pocket inside the body panel.
Triangular pieces of cowhide leather are sewn at both ends of each pocket opening. These reinforce the points that receive repeated strain as hands and belongings pass through the opening, helping support the surrounding fabric. Their triangular shapes and contrasting material also add a subtle detail against the dark indigo denim.
Left-Sleeve Utility Pocket with Four Pen Slots
A zippered utility pocket is positioned on the left upper sleeve. Often referred to as a cigarette pocket in flight-jacket terminology, this detail draws on the practical sleeve-pocket arrangement found on American military flight jackets and recreates it in denim.
An additional layer of matching denim is attached over the face of the pocket. Vertical rows of stitching divide this outer layer into four narrow slots for pens or similarly slender items. The combination of a zippered compartment and separate pen slots gives the sleeve pocket its layered construction and recognizable military appearance.
Interior Brand Label and Denim Hanger Loop
A brand label is sewn inside the back neck, with a denim hanger loop positioned above it. The loop is made from a narrow strip of denim placed horizontally and secured at both ends, leaving the middle raised away from the lining so the jacket can be hung from a hook.
Made in China
This Kojima Genes jacket is made in China. Its dark indigo cotton shell, nylon lining, polyester insulation, substantial hood, adjustable waist, and practical pocket arrangement bring together the materials and construction that define this denim interpretation of the N-3B.
The large hood and insulated body provide the design's characteristic volume, while the raglan sleeves and longer hem establish its coat-like proportions. As the denim softens and develops wear marks, its surface gains an individual character, carrying the substantial presence of military outerwear into everyday casual use.
Care Instructions
Machine wash on a normal cycle at a maximum water temperature of 40°C (104°F).
Do not bleach.
Do not tumble dry.
Line dry in the shade.
Iron on a medium heat setting with a pressing cloth.
Do not dry clean.
Professional wet cleaning using a gentle process is permitted.
Dye Transfer and Handling Precautions
This garment is made with dyed fabric that may release color. Wash it separately from other items to help prevent dye transfer, and do not use bleach or a dryer.
Color may transfer if the jacket is left damp in contact with other items. Perspiration and friction during wear may also transfer dye to clothing or accessories. Avoid prolonged soaking or leaving the garment wet for an extended period, as dye may continue to bleed from the fabric.
Always follow the care instructions attached to the actual product.
Important Notes
- Our inventory is shared among our physical retail store and multiple online stores, so inventory changes may not always be reflected immediately on each website.
- Even after an order has been placed, an item may occasionally be sold out due to the timing of simultaneous purchases. We sincerely appreciate your understanding.
- All measurements are taken manually with the garment laid flat, using a measuring tape.
- Because individual garments and measuring methods may vary, slight measurement differences may occur.
- The actual color of the product may appear slightly different from the photographs depending on lighting conditions and the settings of your monitor or display.
Kojima Genes
This men's insulated denim N-3B flight jacket is made in China and produced by Kojima Genes, a Japanese brand based in Kojima, Kurashiki, Okayama, an area known for its denim industry. Taking inspiration from the U.S. Air Force N-3B cold-weather flight jacket, this model brings the design's substantial hood, protective front closure, practical pockets, and longer body into an outerwear piece made with a 100% cotton dark indigo denim shell. Nylon lining and polyester insulation are combined with a polyester pile-lined hood, permanently sewn-on faux fur trim, concealed rib-knit cuffs, and a two-way YKK front zipper. Raglan sleeves, denim elbow reinforcements, an internal waist drawcord, and separate adjustments for the hood opening and depth complete the construction. The full body and sleeves create the recognizable volume of an N-3B, while the denim contributes a textured surface, a weighty feel, and gradual fading with wear. Together, these features bring the practical character of military outerwear and the evolving appearance of denim into a hooded coat for everyday cold-weather casual wear.
Size and Fit Guide:
Gender: Men.
Fit: This jacket has a classic N-3B silhouette, with fullness through the chest, torso, and sleeves and a body length that extends over the waist and hips. The substantial denim shell, insulating fill, and large hood give it a pronounced three-dimensional shape and a noticeably weighty feel when worn. The hem falls naturally from the body, while the internal waist drawcord allows you to adjust the room around the torso and the shape of the waist.
Raglan sleeves join the body along diagonal seams running from the neckline toward the underarms. Without conventional seams at the shoulder tips, the outer line flows smoothly from the shoulder area into the sleeves. Each sleeve opening combines an outer denim sleeve end with an inner rib-knit cuff. The denim opening has no button or other opening fastener, while the concealed knit stretches around the wrist to help reduce drafts.
Although the exterior has the fullness associated with an N-3B, the thickness of the insulation and lining occupies some of the space inside. The actual fit therefore has less room than the flat chest-width measurement alone might suggest. With continued wear, the denim gradually becomes more supple and settles into a more naturally broken-in feel.
As a general starting point, you may wish to consider the same tagged size you usually wear in U.S. or European jackets. The most suitable size may vary depending on the brands you normally wear, your body type, the thickness of your layers, and your preferred amount of room.
Because the jacket combines substantial denim, insulation, and lining, it may fit differently from a lightweight jacket with the same flat chest width. Please measure a similar insulated jacket or coat that fits you well, ideally one with comparable thickness and construction, and compare its chest width, body length, and center-back sleeve length with the measurements below.
Our model wears Tagged Size M. He is 175 cm / approximately 5'9" tall, weighs 59 kg / approximately 130 lbs, and has a 91 cm / approximately 36" chest. For reference, he normally wears a US/EU size S/36. On him, size M leaves room through the chest and sleeves while extending over the waist and hips to create the characteristic N-3B outline.
The following measurements show the garment itself laid flat, not the wearer's body measurements. Width is the straight-across measurement of the jacket and does not represent the garment's full chest circumference or the wearer's chest measurement.
In inches
Tagged Size M
Width: 22.8" / Length: 29.5"
Sleeve: 32.7"
Tagged Size L
Width: 24.0" / Length: 30.3"
Sleeve: 33.5"
Tagged Size XL
Width: 25.6" / Length: 30.7"
Sleeve: 34.6"
Tagged Size XXL
Width: 27.2" / Length: 31.5"
Sleeve: 35.4"
In centimeters
Tagged Size M
Width: 58cm / Length: 75cm
Sleeve: 83cm
Tagged Size L
Width: 61cm / Length: 77cm
Sleeve: 85cm
Tagged Size XL
Width: 65cm / Length: 78cm
Sleeve: 88cm
Tagged Size XXL
Width: 69cm / Length: 80cm
Sleeve: 90cm
[How We Measure the Actual Garment]
Width (Chest Width / Half Chest): Measured with the jacket laid flat, straight across from side to side approximately 3cm (about 1.2 in.) below the underarms. This is a flat width measurement, not the garment's full chest circumference or the wearer's chest measurement.
Length (Body Length): Measured down the back from the seam where the hood joins the body to the bottom edge of the hem. The height of the hood is not included.
Sleeve (Center-Back Sleeve Length): Measured from the center back at the seam where the hood joins the body, across the shoulder area, and down to the outer edge of the denim sleeve opening. The measurement ends at the outer denim sleeve edge, rather than at the concealed rib-knit cuff inside.
Shoulder Width: Not measured. This jacket uses raglan sleeves without conventional seams at the shoulder tips, so a standard shoulder-width measurement is not provided. Please use the chest width, body length, and center-back sleeve length as the primary references when comparing sizes.
Made in China.
- Brand new and unused.
- All measurements are taken by hand with the garment laid flat, using a measuring tape.
- Slight measurement differences may occur due to individual garment variations and the measuring method.
- Actual color may vary slightly from the photos due to lighting conditions and individual screen settings.
A Denim Interpretation of the N-3B Flight Jacket
The Denim N-3B Flight Jacket by KGR takes its design from the N-3B, a hooded flight jacket associated with U.S. Air Force cold-weather clothing. Kojima Genes reinterprets its distinctive proportions and practical details with a cotton denim shell, combining military outerwear construction with the rugged surface character of denim.
The large hood surrounds the head and neck, a protective outer flap covers the front zipper, and pockets at the upper front, waist, and left sleeve retain the recognizable arrangement of an N-3B. Insulating fill is enclosed between the shell and lining, giving the body and sleeves warmth and fullness. These details preserve the design's substantial military appearance while adapting it to everyday casual wear.
Gradual Fading and a Naturally Broken-In Feel
Repeated wear gradually softens the denim and allows it to settle more naturally around the body. As the fabric bends and rubs during use, creases, localized fading, and wear marks develop across the initially dark surface.
These changes add contrast and depth to the fabric over time. Their location and intensity depend on how the jacket is worn and cared for, allowing the denim to develop an individual appearance through use.
Substantial 100% Cotton Dark Indigo Denim Shell
The shell is woven from 100% cotton, with indigo-dyed warp yarns running lengthwise and ecru-toned weft yarns running across the fabric. Fine glimpses of the lighter weft appear within the dark indigo face, introducing tonal variation throughout the weave.
Natural irregularities in the yarns give the surface subtle variations in texture. Together with the contrast between the dark warp and lighter weft, these details produce the depth and rugged appearance associated with traditional denim workwear.
The denim has a firm, substantial hand with enough body to support the jacket's shape, while avoiding an excessively rigid feel. Its initially structured character gradually becomes more supple with wear, allowing the shell to develop a more familiar, broken-in feel without losing the visible texture of the woven cotton.
Sage-Green 100% Nylon Body Lining
The body is lined with 100% nylon fabric in a muted, gray-toned sage green. Its smooth surface helps the jacket slide over the layers worn underneath, reducing catching and friction when putting it on, taking it off, or moving while wearing it.
The subdued green lining contrasts with the dark indigo denim shell. When the front is open, this inner color adds to the flight jacket's military character while visually distinguishing the smooth lining from the textured outer fabric.
100% Polyester Insulating Fill
Polyester insulation is enclosed between the outer denim and the lining. The fill adds warmth and thickness while giving the body and sleeves the rounded volume characteristic of an insulated N-3B.
The loft of the insulation and the firm hand of the denim work together to support the jacket's substantial three-dimensional shape. This layered construction also contributes to its weighty feel and occupies some of the interior space, which is why the exterior measurements alone do not fully describe the room available when worn.
Two-Way YKK Front Zipper
The front closes with a YKK zipper fitted with two sliders, allowing the opening to be adjusted from both the top and the bottom. With the zipper fastened, the lower slider can be raised to open the hem area independently of the upper opening.
Opening the lower portion can ease pulling across the abdomen and hips when sitting, allowing the longer front panels to move more freely. This can also reduce strain on the surrounding denim and zipper by giving the lower body additional room to spread. The same adjustment lets you change the lower-front silhouette or reveal part of the clothing worn underneath.
Inner and Outer Denim Storm Flaps
An internal denim wind flap runs vertically beside the zipper on the wearer's right front panel. When the zipper is closed, this strip of fabric lies behind the front opening, creating an additional layer between the zipper and the inside of the jacket.
An outer storm flap is attached on the wearer's left side and carries fastening loops. After closing the zipper, these loops can be secured over the buttons on the right front panel, bringing the flap across the zipper from the outside. The layers of denim on both sides of the closure help reduce wind entering through the zipper teeth and the meeting edges of the front opening.
The lower end of the outer flap also has a snap that fastens to a corresponding snap on the wearer's left front panel. Together with the loop-and-button fastenings, this additional fastening point helps control the position of the long front flap.
High Front Closure Extending into the Hood
The front zipper continues upward to the area where the hood's faux fur trim is attached. Closing it to the top brings the front edges of the hood upright around the neck and face, increasing coverage and helping reduce exposure to cold drafts.
Lowering the zipper opens the front of the hood so it can spread into a broad, collar-like shape with the pile lining visible. The zipper position therefore changes both the amount of coverage around the neck and the way the hood frames the upper body.
Paneled Denim Hood with Polyester Pile Lining and Fixed Faux Fur Trim
The hood uses the same denim as the body, with multiple shaped panels sewn together to create a three-dimensional form around the head. Its interior is lined with 100% polyester pile, providing a soft, textured surface where the hood rests against the head and neck.
Long-pile faux fur made from 100% polyester runs around the hood opening, adding fullness around the face. The trim is sewn directly to the hood and cannot be removed. Both the inner pile and the outer faux fur are synthetic, offering comparatively straightforward care relative to natural fur, while still requiring the handling specified on the garment's care label.
Adjustable Hood Opening with Reinforced Drawcord Exits
A drawcord runs around the hood opening so its fit around the face can be adjusted. Square reinforcement pieces are sewn at the cord exits on both sides, supporting the areas where the cord passes through the fabric. Pulling the cord reduces the opening and changes how closely the front of the hood sits around the head and face.
Rear Hood Depth Adjustment with Denim Straps and a Metal Buckle
A separate adjustment runs vertically along the outside of the hood. It consists of two denim straps connected by a metal buckle, with the base of each strap sewn to the hood itself.
Changing the length of the strap passing through the buckle draws the attachment points closer together or allows them to sit farther apart. This changes how the hood fabric folds, adjusting its rearward projection and the depth of the hood when worn. The rear strap and the drawcord around the face operate independently, allowing the opening and the overall depth to be adjusted separately.
Two-Piece Raglan Sleeves with Denim Elbow Reinforcements
The sleeves join the body along diagonal raglan seams that extend from the neckline toward the underarms. This construction avoids a conventional sleeve-attachment seam at the shoulder tip and creates a smooth outer line from the shoulder area into the upper arm.
Each sleeve is assembled from two fabric panels joined to form the sleeve tube. Additional pieces of matching denim are laid over and sewn to the elbow areas of both sleeves, adding reinforcement at these points while retaining the same fabric character as the rest of the shell.
Concealed Stretch Rib-Knit Cuffs
The sleeve ends combine an outer denim opening with a separate rib-knit cuff positioned inside. No buttons or other opening fasteners are fitted at the denim sleeve ends. The outer denim covers the knit, helping protect it from abrasion and snagging during wear.
The inner cuffs are made from 98% polyester and 2% spandex (polyurethane). Their knitted structure and elastic fiber content allow them to stretch around the wrists, reducing the gaps at the sleeve openings. This helps limit cold air entering at the wrists and warm air escaping from inside the sleeves.
Nearly Straight Hem with N-3B Coat Proportions
The hem follows an almost straight horizontal line and is not gathered into a rib-knit waistband. It retains the width of the lower body and extends over the hips, allowing the denim to fall naturally into the longer, coat-like outline associated with an N-3B.
Internal Waist Drawcord
A drawcord runs around the inside of the body at waist level, with accessible cord sections on the left and right. Tightening it reduces the fullness around the torso and brings definition to the waist, while loosening it allows the body to retain more of its natural volume.
Because the adjustment is positioned inside the jacket, the cord does not hang across the exterior denim. This provides a way to vary the silhouette while keeping the outer surface visually uncluttered.
Slanted Upper Front Pockets with Two Snap Closures
The two upper front pockets sit across the chest-to-abdomen area and are accessed through slanted openings set into the front panels. On each side, the upper end of the opening sits closer to the center front, while the lower end angles outward toward the side of the body. This orientation makes the openings accessible when sliding the hands into the pockets.
Denim welts finish the edges of the openings. Each pocket has two pairs of mating snaps, allowing the opening to be secured at an upper and a lower point. These fastenings help keep the pocket mouth from remaining open when it is not in use.
Lower Flap Pockets with Triangular Cowhide Reinforcements
The lower front pockets have horizontal openings covered by denim flaps. Each flap has rounded lower corners and a centrally positioned snap that holds it over the pocket entrance. Lifting the flap reveals a horizontal opening leading into the pocket inside the body panel.
Triangular pieces of cowhide leather are sewn at both ends of each pocket opening. These reinforce the points that receive repeated strain as hands and belongings pass through the opening, helping support the surrounding fabric. Their triangular shapes and contrasting material also add a subtle detail against the dark indigo denim.
Left-Sleeve Utility Pocket with Four Pen Slots
A zippered utility pocket is positioned on the left upper sleeve. Often referred to as a cigarette pocket in flight-jacket terminology, this detail draws on the practical sleeve-pocket arrangement found on American military flight jackets and recreates it in denim.
An additional layer of matching denim is attached over the face of the pocket. Vertical rows of stitching divide this outer layer into four narrow slots for pens or similarly slender items. The combination of a zippered compartment and separate pen slots gives the sleeve pocket its layered construction and recognizable military appearance.
Interior Brand Label and Denim Hanger Loop
A brand label is sewn inside the back neck, with a denim hanger loop positioned above it. The loop is made from a narrow strip of denim placed horizontally and secured at both ends, leaving the middle raised away from the lining so the jacket can be hung from a hook.
Made in China
This Kojima Genes jacket is made in China. Its dark indigo cotton shell, nylon lining, polyester insulation, substantial hood, adjustable waist, and practical pocket arrangement bring together the materials and construction that define this denim interpretation of the N-3B.
The large hood and insulated body provide the design's characteristic volume, while the raglan sleeves and longer hem establish its coat-like proportions. As the denim softens and develops wear marks, its surface gains an individual character, carrying the substantial presence of military outerwear into everyday casual use.
Care Instructions
Machine wash on a normal cycle at a maximum water temperature of 40°C (104°F).
Do not bleach.
Do not tumble dry.
Line dry in the shade.
Iron on a medium heat setting with a pressing cloth.
Do not dry clean.
Professional wet cleaning using a gentle process is permitted.
Dye Transfer and Handling Precautions
This garment is made with dyed fabric that may release color. Wash it separately from other items to help prevent dye transfer, and do not use bleach or a dryer.
Color may transfer if the jacket is left damp in contact with other items. Perspiration and friction during wear may also transfer dye to clothing or accessories. Avoid prolonged soaking or leaving the garment wet for an extended period, as dye may continue to bleed from the fabric.
Always follow the care instructions attached to the actual product.
Important Notes
- Our inventory is shared among our physical retail store and multiple online stores, so inventory changes may not always be reflected immediately on each website.
- Even after an order has been placed, an item may occasionally be sold out due to the timing of simultaneous purchases. We sincerely appreciate your understanding.
- All measurements are taken manually with the garment laid flat, using a measuring tape.
- Because individual garments and measuring methods may vary, slight measurement differences may occur.
- The actual color of the product may appear slightly different from the photographs depending on lighting conditions and the settings of your monitor or display.
