ONI Denim 286-13BK "Jet Black" 13oz Denim Size Chart
Every published measurement for the ONI Denim 286-13BK "Jet Black" 13oz Denim, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.
In a size 33, the ONI Denim 286-13BK "Jet Black" 13oz Denim measures 34.75″ waist, 12.75″ front rise, 13.5″ thigh and 8″ leg opening. Sizes on its chart run from 1½″ over the tag to 2¼″ over it, and each size up adds ¾″. From knee to hem, the leg narrows 1½″.
| Size | Waist | Front Rise | Back Rise | Thigh | Knee | Leg Opening | Inseam |
|---|---|---|---|---|---|---|---|
| 29 | 30.75 | 12.25 | 14.5 | 11.75 | 8.25 | 7 | 33.75 |
| 30 | 31.5 | 12.25 | 15 | 12.25 | 8.75 | 7.5 | 33.75 |
| 31 | 32.75 | 12.5 | 15.25 | 12.5 | 8.75 | 7.5 | 33.75 |
| 32 | 33.5 | 12.5 | 15.25 | 13 | 9.25 | 7.75 | 33.75 |
| 33 | 34.75 | 12.75 | 15.5 | 13.5 | 9.5 | 8 | 33.75 |
| 34 | 35.5 | 13 | 15.5 | 13.5 | 9.75 | 8.25 | 33.75 |
| 36 | 37.75 | 13 | 16 | 14 | 9.75 | 8.25 | 33.75 |
| 38 | 40.25 | 13.5 | 16.5 | 14.5 | 10 | 8.5 | 33.75 |
Scroll the table sideways for the rest of the columns.
Listed under: Straight · Slim · High Rise · Biggest Waists
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About ONI Denim
ONI Denim is a Japanese denim label associated with veteran denim specialist Masao Oishi and a deliberately low-profile approach to production. Rather than focusing on elaborate branding, it builds its reputation around distinctive fabrics woven with irregular yarns and low-tension techniques. Its denim is particularly prized for its pronounced slub texture, rugged appearance, and rich fading potential, with its much-discussed Secret Denim becoming a standout among enthusiasts of Japanese selvedge jeans.
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Source: retailer size chart (opens in new tab). Last verified 2026-07-13. Always confirm with the retailer before buying — fits are re-cut seasonally.