ONI Denim 642-13BK "Jet Black" 13oz Selvedge Denim Size Chart
Every published measurement for the ONI Denim 642-13BK "Jet Black" 13oz Selvedge Denim, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.
In a size 34, the ONI Denim 642-13BK "Jet Black" 13oz Selvedge Denim measures 36.25″ waist, 11″ front rise, 13.25″ thigh and 7.35″ leg opening. Sizes on its chart run from 2¼″ over the tag to 3½″ over it, and each size up adds ¾″. From knee to hem, the leg narrows 1.65″.
| Size | Waist | Front Rise | Thigh | Knee | Leg Opening | Inseam |
|---|---|---|---|---|---|---|
| 30 | 33.5 | 10.4 | 12.25 | 8.25 | 6.6 | 32.5 |
| 31 | 33.75 | 10.5 | 12.25 | 8.25 | 6.9 | 32.5 |
| 32 | 34.25 | 10.65 | 12.65 | 8.6 | 6.9 | 32.5 |
| 33 | 35.25 | 10.75 | 12.85 | 8.8 | 7.15 | 32.5 |
| 34 | 36.25 | 11 | 13.25 | 9 | 7.35 | 33 |
| 36 | 38.25 | 11.35 | 13.85 | 9.6 | 7.6 | 33 |
| 38 | 40.5 | 11.65 | 14.5 | 10 | 7.75 | 33.5 |
| 40 | 43 | 11.75 | 15 | 10.25 | 7.9 | 33.5 |
Scroll the table sideways for the rest of the columns.
Listed under: Tapered · Relaxed · Biggest Waists
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Where to buy
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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 2026-09-22. Always confirm with the retailer before buying — fits are re-cut seasonally.