ONI Denim 270-OLD18 "Olive Denim" 18oz Neat Straight Jeans Size Chart
Every published measurement for the ONI Denim 270-OLD18 "Olive Denim" 18oz Neat Straight Jeans, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.
In a size 33, the ONI Denim 270-OLD18 "Olive Denim" 18oz Neat Straight Jeans measures 33″ waist, 11.5″ front rise, 12.75″ thigh and 8.5″ leg opening. Sizes on its chart run from even with the tag to 1″ over it, and each size up adds ¾″. From knee to hem, the leg narrows 1¼″.
| Size | Waist | Front Rise | Back Rise | Thigh | Knee | Leg Opening | Inseam |
|---|---|---|---|---|---|---|---|
| 29 | 30 | 10.75 | 14.5 | 11.75 | 8.75 | 7.75 | 34.75 |
| 30 | 30.75 | 11.25 | 15.25 | 12 | 9 | 8 | 34.75 |
| 31 | 31.5 | 11.5 | 15.25 | 12.25 | 9.25 | 8 | 34.75 |
| 32 | 32.25 | 11.5 | 15.5 | 12.75 | 9.75 | 8.5 | 34.75 |
| 33 | 33 | 11.5 | 15.5 | 12.75 | 9.75 | 8.5 | 34.75 |
| 34 | 34.75 | 11.75 | 16 | 13.5 | 10.25 | 8.75 | 34.75 |
| 36 | 36.5 | 11.75 | 16.25 | 13.75 | 10.5 | 8.75 | 35 |
| 38 | 38.25 | 11.75 | 16.75 | 14.25 | 10.75 | 8.75 | 35 |
Scroll the table sideways for the rest of the columns.
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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 2026-09-01. Always confirm with the retailer before buying — fits are re-cut seasonally.