ONI Denim 679AIZ "Aizumi x Black Secret" 20oz Selvedge Denim Size Chart
Every published measurement for the ONI Denim 679AIZ "Aizumi x Black Secret" 20oz Selvedge Denim, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.
In a size 32, the ONI Denim 679AIZ "Aizumi x Black Secret" 20oz Selvedge Denim measures 32.5″ waist, 10.75″ front rise, 12.4″ thigh and 6.4″ leg opening. Sizes on its chart run from ½″ over the tag to 1″ over it, and each size up adds 1″. From knee to hem, the leg narrows 1.95″.
| Size | Waist | Front Rise | Thigh | Knee | Leg Opening | Inseam |
|---|---|---|---|---|---|---|
| 28 | 28.75 | 10 | 11.3 | 7.3 | 5.75 | 32.5 |
| 29 | 29.5 | 10.25 | 11.5 | 7.6 | 5.9 | 32.5 |
| 30 | 30.75 | 10.5 | 11.85 | 7.9 | 6.15 | 32.5 |
| 31 | 31.5 | 10.5 | 12 | 8.15 | 6.25 | 32.5 |
| 32 | 32.5 | 10.75 | 12.4 | 8.35 | 6.4 | 32.5 |
| 33 | 33.5 | 11 | 12.65 | 8.5 | 6.75 | 32.5 |
| 34 | 34.5 | 11 | 12.9 | 8.5 | 6.75 | 32.5 |
| 36 | 37 | 11.25 | 13.6 | 8.8 | 7 | 32.5 |
Scroll the table sideways for the rest of the columns.
Listed under: Tapered · Regular
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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.