J301-D01 US Cotton Dark Wash 14.8oz Washed Selvedge Denim
Japan Blue's jeans release enters Vinchy's AI lab for a closer look at fabrication, fit, and care notes.
Tagged at $295, quality lands at 90/100, comfort at 60/100, and sustainability at Not Available for discerning shoppers.
- Brand · Japan Blue
- Category · Jeans
AI scorecard
What matters most for shoppers researching this piece right now.
Craftsmanship, stitching, and long-term durability.
Movement, breathability, and day-long wear.
Environmental impact and responsible sourcing.
Attribute deep dive
We break down what drove each score so you can weigh trade-offs.
Quality Analysis 90/100
This denim is built for the long haul, featuring a substantial 14.8oz weight and tensile strength derived from short staple American cotton, which is a strong positive indicator for abrasion resistance and longevity. Further reinforcing its quality are custom engraved button and rivets, suggesting robust hardware designed to withstand daily stress.
Comfort Assessment 60/100
The comfort score is based on the fabric being 100% US cotton, which is a natural fiber, but the 14.8oz weight and lack of stretch indicators suggest a rigid, heavyweight feel. The "washed and distressed" finish, however, may mitigate some initial stiffness, replicating the feel of "well worn denim."
Sustainability Impact Not Available
This garment lacks specific sustainability indicators, such as certified organic or recycled materials, making it impossible to assess its environmental or ethical impact based solely on this text.
Measurement breakdown
Measurements across available sizes.
| Size | Waist | Thigh | Knee | Leg Opening | Inseam | Rise |
|---|---|---|---|---|---|---|
| 33 | 85.1 cm | 61 cm | 21.6 cm | 18 cm | 80 cm | 27.9 cm |
| 32 | ||||||
| 31 | ||||||
| 38 | ||||||
| 30 | ||||||
| 36 | ||||||
| 34 | ||||||
Gallery
Reference shots help you validate textures, hardware, and proportion before you buy.






Garment details
Need-to-know info pulled from the retailer’s description, sizing notes, and care callouts.
Crafted using short staple American cotton, Japan Blue's Circle denim fabric is modeled after vintage fabrics dyed a deep indigo color. This iteration comes washed and distressed to replicate the look and feel of a pair of well worn denim. American short staple cotton gives the fabric a light slub texture with added tensile strength, allowing for a quicker and higher contrasting fade patterns. Woven on vintage shuttle looms, Japan Blue's Circle line is their reimagining of easy to wear classics designed for everyday wear. The denim will develop prominent creasing and fade patterns with wear, while the classic indigo color will brighten to reveal a light blue after repeated washes. Equipped with a custom branded leather patch and signature Japan Blue details.
Short staple American cotton
Japan Blue "Dark Aging" wash 14.8oz sanforized raw selvedge denim The Straight Tapered fit features a medium rise, slim thigh, and strong taper in the lower leg
Washed and distressed Indigo dyed warp with white weft Custom engraved button and rivets Zipper fly Canvas pocket bags Hidden coin pocket selvedge Custom branded cowhide leather patch Signature Japan Blue inseam stitching 100% US cotton Made in Japan