ONI Denim ONI-288ZR 20oz "ONI Secret-" Size Chart
Every published measurement for the ONI Denim ONI-288ZR 20oz "ONI Secret-", size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.
In a size 33, the ONI Denim ONI-288ZR 20oz "ONI Secret-" measures 32.75″ waist, 12.25″ front rise, 11.5″ thigh and 8″ leg opening. Sizes on its chart run from ½″ under the tag to even with it, and each size up adds 1″.
| Size | Waist | Front Rise | Back Rise | Thigh | Leg Opening | Inseam |
|---|---|---|---|---|---|---|
| 29 | 28.75 | 11.5 | 14.25 | 10.75 | 7.25 | 35.75 |
| 30 | 29.5 | 11.5 | 14.25 | 11 | 7.5 | 35.75 |
| 31 | 30.75 | 11.75 | 14.5 | 11.25 | 7.75 | 35.75 |
| 32 | 32 | 11.75 | 14.5 | 11.5 | 7.75 | 35.75 |
| 33 | 32.75 | 12.25 | 15 | 11.5 | 8 | 35.75 |
| 34 | 33.75 | 12.25 | 15 | 11.75 | 8.25 | 35.75 |
| 36 | 35.75 | 12.5 | 15.25 | 12.25 | 8.75 | 35.75 |
| 38 | 37.75 | 13 | 15.75 | 12.5 | 9 | 35.75 |
Scroll the table sideways for the rest of the columns.
Listed under: Straight · Regular
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Where to buy
- Hinoya (opens in new tab)$215Check availability
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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 2026-09-23. Always confirm with the retailer before buying — fits are re-cut seasonally.