1178-ID Indigo x Black Sashiko Denim
Pure Blue Japan's jeans release enters Vinchy's AI lab for a closer look at fabrication, fit, and care notes.
Tagged at $345, quality lands at 100/100, comfort at 70/100, and sustainability at Not Available for discerning shoppers.
- Brand · Pure Blue Japan
- 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 100/100
This denim is built to last, featuring a medium-weight Japanese sashiko fabric and robust construction details like chain-stitched hems and hidden copper rivets on the back pockets, ensuring excellent longevity and resistance to wear. The use of custom branded nickel buttons further reinforces the garment's quality and durability.
Comfort Assessment 70/100
The 100% cotton fabric is described as medium-weight, which suggests a standard level of comfort, but the lack of stretch or other positive comfort features means the fit will be rigid.
Sustainability Impact Not Available
No sustainability indicators are present in the text, which describes the garment's material (100% cotton), construction, and dyeing process (sulfur-dyed). Therefore, a default score of 101 is assigned.
Measurement breakdown
Measurements across available sizes.
| Size | Waist | Thigh | Knee | Leg Opening | Inseam | Rise |
|---|---|---|---|---|---|---|
| 35 | 92.1 cm | 68.6 cm | 25.8 cm | 22.6 cm | 85.1 cm | 30.5 cm |
| 32 | ||||||
| 31 | ||||||
| 38 | ||||||
| 30 | ||||||
| 36 | ||||||
| 33 | ||||||
| 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.
Pure Blue Japan's sashiko denim is custom woven using a jacquard weave process, offering a medium-weight fabric with a pronounced running stitch texture. Produced in small batches, the denim is sulfur-dyed, allowing it to fade and develop a unique patina over time. Crafted in a classic five-pocket silhouette, the jeans are finished with custom nickel buttons, a deerskin leather patch, and Pure Blue Japan's signature indigofera leaf embroidery.
Medium-weight Japanese sashiko stitch denim fabric Indigo warp, black weft The "Relaxed Tapered" fit from Pure Blue Japan is designed with additional room in the top block and thighs and a strong taper from the knee down Signature Pure Blue Japan leaf embroidery on back right pocket Deerkskin leather patch
Custom branded nickel button fly Hidden back pocket copper rivets Raised belt loops Chain stitched hems 100% cotton Made in Japan