PER-EX-005-BK Black x Persimmon Extra Slub 15oz Rinsed Selvedge Denim
Pure Blue Japan's jeans release enters Vinchy's AI lab for a closer look at fabrication, fit, and care notes.
Tagged at $395, quality lands at 100/100, comfort at Not Available, 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 for the long haul, featuring heavyweight 15oz Japanese selvedge fabric and robust construction details like chain-stitched hems and hidden back pocket rivets, ensuring excellent resistance to wear and tear. The use of custom nickel hardware further reinforces the garment's commitment to lasting quality.
Comfort Assessment Not Available
The comfort score is set to the default 70 because the text provides no specific comfort indicators, such as stretch, soft fibers, or seam construction, to adjust the baseline.
Sustainability Impact Not Available
No sustainability indicators are present in the text, which describes the garment's materials, fit, and traditional Japanese dyeing techniques. Therefore, the default score of 101 is assigned.
Measurement breakdown
Measurements across available sizes.
| Size | Waist | Thigh | Knee | Leg Opening | Inseam | Rise |
|---|---|---|---|---|---|---|
| 32 | 83.8 cm | 59.7 cm | 20.7 cm | 19.1 cm | 86.4 cm | 25.1 cm |
| 42 | ||||||
| 31 | ||||||
| 38 | ||||||
| 30 | ||||||
| 36 | ||||||
| 35 | ||||||
| 33 | ||||||
| 34 | ||||||
| 40 | ||||||
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.
This special release from Pure Blue Japan reimagines the brand’s Extra Slub Series with a unique combination of sulfur black and kakishibu dye treatments. Kakishibu, a traditional Japanese dyeing technique, uses fermented persimmon tannins aged for at least two years to produce a rich amber hue that fades and transforms similar to indigo. The denim’s deep black surface comes from a sulfur dye process, in which sulfur compounds bond to the yarn’s outer layer. The result is a fabric that evolves beautifully with wear, highlighting the depth of both dyes and the dramatic texture of the ultra-slubby yarns. As with other styles in PBJ’s catalog, this denim is woven on vintage shuttle looms using a slow, deliberate weaving process to create the brand’s signature texture. Finished with custom hardware, a deerskin leather patch, and Pure Blue Japan’s iconic indigofera leaf embroidery.
15oz Japanese slub selvedge denim (rinsed, unsanforized) Sulfur-dyed black warp with kakishibu-dyed weft The Slim Straight (005) fit from Pure Blue Japan has a medium rise, and is slim in the top block with a slight taper from the knee down
Signature indigofera leaf embroidery at back pocket Black deerskin leather patch Blue selvedge ID, coin pocket selvedge Custom nickel button fly Hidden back pocket rivets Raised belt loops Chain-stitched hems 100% cotton Made in Japan