PER-EX-019-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 90/100, comfort at 70/100, and sustainability at 70/100 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 90/100
This denim is built for the long haul, featuring a substantial 15oz Japanese slub selvedge fabric and robust construction details like hidden back pocket rivets and chain-stitched hems, ensuring it will evolve beautifully rather than fall apart. The use of custom nickel hardware and a deerskin patch further signals a commitment to high-quality, lasting components.
Comfort Assessment 70/100
The comfort score is set at the default 70 because the text provides no specific comfort indicators, such as stretch, soft materials, or seam treatments, focusing instead on the unique dyeing process and heavyweight denim construction.
Sustainability Impact 70/100
This garment features kakishibu dyeing, a traditional Japanese technique utilizing fermented persimmon tannins, which is a natural, bio-based dye alternative to conventional synthetic dyes. However, the use of sulfur dye for the black warp and a deerskin leather patch introduces potential environmental and animal welfare concerns.
Measurement breakdown
Measurements across available sizes.
| Size | Waist | Thigh | Knee | Leg Opening | Inseam | Rise |
|---|---|---|---|---|---|---|
| 31 | 81.3 cm | 59.7 cm | 19.7 cm | 16.1 cm | 83.8 cm | 27.3 cm |
| 42 | ||||||
| 38 | ||||||
| 32 | ||||||
| 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 Relaxed Tapered (019) 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 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