902 Sleeping Demon Natural Indigo 15.5oz Selvedge Denim
ONI Denim's jeans release enters Vinchy's AI lab for a closer look at fabrication, fit, and care notes.
Tagged at $245, quality lands at 100/100, comfort at 60/100, and sustainability at 80/100 for discerning shoppers.
- Brand · ONI Denim
- 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 substantial 15.5oz Japanese slub selvedge fabric and robust triple stitch reinforced seams, ensuring excellent resistance to wear and tear. Further enhancing its longevity are quality details like back pocket rivets and engraved hardware, all hallmarks of the reputable ONI DENIM brand.
Comfort Assessment 60/100
The comfort score is based on the historic Tempi wash process, which is applied to eliminate shrinkage and create a broken-in feel right out of the box. However, the 15.5oz heavyweight, 100% cotton selvedge denim fabric is inherently rigid and lacks stretch, which limits overall comfort.
Sustainability Impact 80/100
This garment earns a positive sustainability score because it is rope-dyed with pure natural indigo, a traditional and less chemically intensive dyeing process. However, the use of conventional cotton without any mention of organic or recycled content prevents a higher score.
Measurement breakdown
Measurements across available sizes.
| Size | Waist | Thigh | Knee | Leg Opening | Inseam | Rise |
|---|---|---|---|---|---|---|
| 33 | 85.1 cm | 62.2 cm | 21.6 cm | 17.1 cm | 86.4 cm | 28.7 cm |
| 29 | ||||||
| 31 | ||||||
| 38 | ||||||
| 32 | ||||||
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| 28 | ||||||
| 36 | ||||||
| 35 | ||||||
| 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.
After five years in the making, the first-ever ONI DENIM x Blue Owl collaboration arrives in the form of the "Sleeping Demon" 15.5oz Japanese Selvedge Denim. Woven on ONI DENIM’s ancient old-world shuttle loom, this collaborative project was designed with the goal of creating a more accessible year-round denim while retaining ONI’s world-famous “secret” texture. By utilizes techniques the brand pioneered over 30 years ago, the final product sports a deceptively subtle appearance from afar, with the denim’s true form revealing itself upon closer inspection. The jeans receive their color from a pure natural indigo dye, which lends a shadowy dark blue color to the denim on day one, and the promise of a classic light wash fade over time. The jeans are treated with the historic Tempi wash process to eliminate shrinkage and create a broken-in feel, and come equipped with custom hardware and a debossed natural leather patch with collaborative ONI DENIM x Blue Owl branding. Only at Blue Owl.
ONI Denim x Blue Owl Collaboration 15.5oz low-tension Japanese slub selvedge denim fabric One-wash with tempi treatment to remove shrinkage ONI's High Tapered fit has a high rise, lots of room through the top block, and a strong taper throughout the legs Rope-dyed with pure natural indigo Engraved buttons and hardware Triple stitch reinforced seams Back pocket rivets Raised belt loops Hidden coin pocket selvedge Collaborative natural leather patch White selvedge ID 100% cotton Made in Japan