Studio D'Artisan Men's 12oz Fox Cotton Long Sleeve Work Shirt - Naturally Colored Brown Organic Twill, Undyed, Made in Japan (SDA 5740)

Studio D'Artisan Men's 12oz Fox Cotton Long Sleeve Work Shirt - Naturally Colored Brown Organic Twill, Undyed, Made in Japan (SDA 5740)

Studio D'artisan

This men's natural brown long-sleeve shirt is made in Japan by Studio D'Artisan (SDA), a brand known for distinctive craftsmanship and fabric development. It is made from rare organic Fox Cotton, grown without pesticides or genetic modification, and finished without synthetic dyes or artificial coloring. The rich brown tone comes directly from the cotton plant itself, creating a naturally earthy look that cannot be replicated through dyeing. Designed with a classic workwear-inspired silhouette and finished with the brand's signature attention to detail, it delivers vintage work shirt character while fitting naturally into modern casual wardrobes. For this model, the fabric is a heavyweight 12-ounce, non-stretch twill in a natural, earth-toned brown, woven from 100% Fox Cotton, a naturally colored cotton developed by Sally Fox under the FoxFibre and Colorganic names. Unlike ordinary white cotton, Fox Cotton retains its natural color in the fiber itself, so the shirt is completely undyed and showcases the cotton's original, authentic brown tone. As part of the finishing process, the garment is pre-washed (also known as one-wash) to help minimize shrinkage. The twill weave shows diagonal lines, and the surface has a naturally uneven yarn character that creates a rugged, textured hand. You will also see subtle nep flecks and small natural specks, along with slight tonal variation that adds visual depth, all of which are characteristic of naturally colored Fox Cotton. The result is an organic depth and a dry, matte finish that cannot be replicated through dyeing. Despite its firmness and structure, the fabric remains supple, so it wears comfortably as it breaks in. At 12 oz, it is unusually heavyweight for a shirt, making it versatile enough to wear on its own, as a layering piece under a jacket, or as a shirt-jacket in transitional seasons. Construction follows a traditional work shirt layout. This shirt features long sleeves with set-in construction, a full front button closure with natural corozo buttons, and a regular collar with a collar stand. The cuffs are finished with a single-button closure and buttoned sleeve plackets for ease of wear. It is equipped with two flapless chest patch pockets, each fitted with a corozo button. The left chest pocket includes a buttonhole-style pen slot opening, a practical detail drawn directly from classic workwear designs. The back is finished with a classic back yoke for added structure and durability. Additional details include a rounded shirttail hem with reinforced side gussets. Twisted thread runoffs extend from the side seams and hang freely at the hem, a distinctive hallmark of vintage workwear craftsmanship. This shirt is cut to fit typical U.S./EU sizing expectations and features a modern, balanced fit. It is not overly slim or overly loose, with a clean body shape and a well-proportioned length. The result is a streamlined silhouette that avoids the boxy, baggy look sometimes seen in certain vintage work shirts. A brand-new Studio D'Artisan release that pairs classic work shirt styling with heavyweight, naturally colored brown organic cotton twill, finished with the brand's signature attention to detail.

Gender: Men.

Fit: This shirt is cut to fit typical U.S./EU sizing expectations and features a modern, balanced fit. It is not overly slim or overly loose, with a clean body shape and a well-proportioned length. The result is a streamlined silhouette that avoids the boxy, baggy look sometimes seen in certain vintage work shirts. Pre washed, minimal shrinkage. To ensure a comfortable fit, please refer to the actual garment measurements listed below. All measurements are taken with the garment laid flat and are provided in both centimeters and inches. Please note that slight variations may occur due to manual measurement. Fit may also vary depending on the design of each style as well as individual preference. For best results, we recommend comparing these measurements with a similar garment you already own.

Our model is wearing a size 36. He stands 5'9" (175 cm) tall, weighs 127 lbs (58 kg), and has a 36-inch (91 cm) chest. He typically wears a US/EU size S (36) in most garments.

Available Sizes.

- Size 36: As a general guide, it may suit those who typically wear a US/EU S, or around a US/EU 36 in tops.

- Size 38: As a general guide, it may suit those who typically wear a US/EU M, or around a US/EU 38 in tops.

- Size 40: As a general guide, it may suit those who typically wear a US/EU L, or around a US/EU 40 in tops.

- Size 42: As a general guide, it may suit those who typically wear a US/EU XL, or around a US/EU 42 in tops.

- Size 44: As a general guide, it may suit those who typically wear a US/EU XXL, or around a US/EU 44 in tops.

The following measurements show the garment itself, not your own body.
Please compare them with a similar piece from your wardrobe to get a better sense of fit.

In inches
- Size 36__Width: 19.7"__Length: 26.8"__Sleeve: 31.9"(24.0")__Shoulder: 16.1"
- Size 38__Width: 20.5"__Length: 27.6"__Sleeve: 32.3"(24.0")__Shoulder: 16.9"
- Size 40__Width: 21.7"__Length: 28.3"__Sleeve: 33.9"(24.8")__Shoulder: 18.1"
- Size 42__Width: 22.8"__Length: 29.5"__Sleeve: 35.0"(25.6")__Shoulder: 18.9"
- Size 44__Width: 24.0"__Length: 30.3"__Sleeve: 35.4"(25.6")__Shoulder: 19.7"

In centimeters
- Size 36__Width: 50cm__Length: 68cm__Sleeve: 81cm(61cm)__Shoulder: 41cm
- Size 38__Width: 52cm__Length: 70cm__Sleeve: 82cm(61cm)__Shoulder: 43cm
- Size 40__Width: 55cm__Length: 72cm__Sleeve: 86cm(63cm)__Shoulder: 46cm
- Size 42__Width: 58cm__Length: 75cm__Sleeve: 89cm(65cm)__Shoulder: 48cm
- Size 44__Width: 61cm__Length: 77cm__Sleeve: 90cm(65cm)__Shoulder: 50cm

Width is half chest: Lay the garment flat and measure side to side approximately 3 cm (about 1.2 in.) below the armhole.

Sleeve is measured from center back of base of collar seam to the end of the cuff.

Sleeve length in parentheses is measured from top of the shoulder seam to end of cuff.

Shoulder Width: Measured straight across the back from the tip of one shoulder seam to the other.

Body Length: Measured from the base of the back collar (where the collar meets the body) straight down to the bottom hem.

Made in Japan. 
Brand new with tags, in unused condition.
*All measurements are taken with the garment laid flat.
*Please note that slight variations in measurements may occur.
*Actual color may differ slightly from the photos due to lighting and screen settings.

Cotton Platform (Organic Fox Cotton / Sally Fox / Naturally Colored Fiber)
- The fabric uses 100% Fox Cotton, a naturally colored cotton originally developed by Sally Fox under the FoxFibre Colorganic names. Unlike conventional white cotton, Fox Cotton carries its brown pigment in the fiber itself. Because the color is intrinsic to the cotton, the finished garment is fully undyed, and the tone presents as a natural, earth-brown that reads deeper and more dimensional than a dyed brown fabric.

Organic / Chemical and Dye Statement (No pesticides / non-GMO / no synthetic dye)
- The cotton is grown without pesticides and without genetic modification. Color is achieved without synthetic dyes or artificial coloring, since the brown tone originates from the cotton plant. This "fiber-colored" approach is also meaningful from a wear standpoint: rather than relying on a surface dye layer, the color is expressed as part of the material itself, which helps maintain a natural, honest appearance over time.

Fabric Spec (12 oz Heavyweight Twill / Non-stretch)

- This model uses a 12-ounce cotton twill, which is unusually heavy for a shirt. Twill is defined by its diagonal wale (the visible angled lines) created by the weave structure. Compared to a plain weave, twill typically offers higher abrasion resistance, which is why it is historically favored for workwear. The fabric is non-stretch, so the shape and "workwear crispness" come from the weave density and yarn character rather than elastane or mechanical stretch.

Weave and Surface Character (Diagonal twill lines / uneven yarn / nep and specks)
The twill lines are clearly visible, indicating a pronounced twill structure. The surface shows naturally uneven yarn character that produces a rugged, textured hand rather than a flat, uniform finish. You will also notice nep flecks and small natural specks. On naturally colored cotton, this kind of visual "grain" is part of the appeal: it reinforces that the material is minimally corrected and not homogenized for a perfectly clean, dyed appearance. Slight tonal variation across the surface adds depth and a more organic, fabric-forward look.

Color and Visual Depth (Undyed / "cannot be replicated through dyeing")
- Because the color is not applied by dye, the brown tone does not read as a single uniform shade. Instead, it presents as a layered earth tone with subtle variation that changes slightly depending on lighting and viewing angle. This is a key difference versus dyed brown shirts, where color often appears more flat and "painted on."

Finishing (One-wash / shrink control)
- The garment is pre-washed (one-wash) as part of the finishing process to help reduce excessive shrinkage after purchase. One-wash finishing also relaxes the fabric slightly, removing some of the initial stiffness while preserving the crisp structure that makes heavyweight twill feel substantial. For customers, this typically means a more predictable fit from the first wear compared to fully raw, unwashed cotton garments.

Hand Feel and Break-in (Firm structure yet supple)
- At first touch, the fabric feels firm and structured due to its weight and twill construction. However, it remains pliable rather than board-stiff, allowing comfortable movement. With wear, the twill gradually “breaks in,” softening and conforming to the body while maintaining its durable, workwear-oriented backbone.

Seasonality and Wear Versatility (Shirt / layering / shirt-jacket)
- With a 12 oz fabric weight, this piece sits in a crossover category between a standard shirt and a light overshirt. It works as a standalone shirt in milder weather, layers under outerwear in colder seasons, and can be worn like a shirt-jacket during transitional periods when you want structure without a full jacket.

Core Construction (Traditional work shirt layout / set-in sleeves / front closure)
- Construction follows a classic work shirt blueprint with set-in sleeves, which provide clean shoulder shaping. The front uses a full button closure. Natural corozo buttons (made from tagua nut) complement the shirt’s naturally derived fabric story, matching the undyed, plant-based character of the Fox Cotton with an equally natural button material.

Collar (Regular collar with collar stand)
- A regular collar with a collar stand (collar band) gives the neckline a more structured profile. The stand supports the collar’s roll and helps the collar stand up cleanly rather than lying flat, especially when worn open with the top button undone.

Cuffs and Sleeve Plackets (Single-button cuffs / buttoned plackets)
- Single-button cuffs keep the finish simple and historically grounded, while buttoned sleeve plackets allow the hand to pass through easily. This is a standard work shirt solution for daily wear and repeated on/off use.

Chest Pockets (Flapless patch pockets with corozo buttons)
- The shirt uses two flapless patch chest pockets. Each pocket is fitted with a corozo button. It adds a secure closure point while maintaining the simpler, no-flap pocket shape. The upper corners of the pockets are reinforced with bartack stitching for added durability at stress points.

Pen Slot Detail (Left pocket / buttonhole-style pen opening)
- The left chest pocket includes a buttonhole-style pen slot opening, a period-inspired feature developed for practical use. This design helps keep a pen securely in place and prevents it from shifting around inside the pocket.

Back Construction (Classic back yoke)
- A classic back yoke reinforces the upper back and shoulder area by adding an extra layer of fabric where stress is most likely to occur. This traditional construction improves structural strength and helps the shirt maintain its shape across the shoulders.

Hem Shape and Reinforcement / Thread Runoffs (Rounded shirttail hem / side gussets / twisted chainstitch runoffs)
- Hem construction follows a classic work shirt approach, featuring a curved shirttail hem finished with reinforced side gussets for added strength at high-stress points. The gussets are triangular reinforcements sewn at the junction of the side seams and hem to help prevent tearing and shape distortion over time, a detail commonly found on vintage work shirts. The hem is also finished with twisted chainstitch runoffs that extend from the side seams and hang freely, a hallmark of traditional workwear construction and high-end reproduction craftsmanship.

Additional Technical Details
- The primary seams are double-stitched and finished with rolled seam construction (flat-felled seams), a classic workwear method that encloses the raw edges for a clean interior and improved strength. This seam type resists fraying and helps maintain long-term durability at high-stress areas.

Fit and Sizing (U.S./EU expectation / modern balanced fit)
- The shirt is cut to align with typical U.S./EU sizing expectations while maintaining a modern, balanced silhouette. The body is clean rather than oversized, and the length is proportioned to avoid the boxy, baggy impression often associated with certain vintage work shirts. The result is a refined workwear fit that layers well and looks sharp worn on its own.

Release Positioning (Brand-new Studio D’Artisan release)
- This is a new Studio D’Artisan release that merges classic work shirt styling with heavyweight, naturally colored brown organic cotton twill. It is designed to highlight the fabric’s rare material story while delivering practical, workwear-derived construction and day-to-day versatility.

Model name: Studio D'artisan (SDA) 5740 / Men's Casual Heavyweight Long-Sleeve Work Shirt in Natural Earth-Tone Brown, Made in Japan, Crafted from 100% Organic Fox Cotton / Mens Organic Cotton Button-Up Shirt - Natural Brown, Heavyweight, Made in Japan.


About FOX COTTON

- Fox Cotton is a rare, fully organic cotton grown without the use of pesticides or genetic modification. It was developed by Sally Fox - well-known as a pioneer of organic cotton - who revived naturally colored cotton varieties that trace back more than 5,000 years. Unlike ordinary white cotton, its natural earth tones come directly from the plant itself, with no need for synthetic dyes or chemicals. This not only reduces environmental impact but also highlights the inherent beauty of the cotton. Grown under the name FOX FIBRE Colorganic, this special cotton is cultivated on Sally Fox’s own farm in California. Her cotton comes from ancient seeds, is completely free from genetic modification, and continues to be grown today as one of the only naturally colored cottons of its kind in the world. Fox Cotton is both people-friendly and eco-friendly - a rare material today that embodies the strength of nature and the functional beauty of cotton in its purest form.


Care Instructions
- Machine wash on a gentle cycle in water up to 40°C / 104°F.
- Do not use chlorine bleach or oxygen bleach.
- Do not tumble dry.
- Line dry in the shade (hang to dry).
- Iron at a medium temperature using a pressing cloth.
- Do not dry clean.