Iron Heart IH-634S-18 18oz Vintage Selvedge Denim Straight Cut Jeans - Indigo Size Chart
Every published measurement for the Iron Heart IH-634S-18 18oz Vintage Selvedge Denim Straight Cut Jeans - Indigo, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.
In a size 34, the Iron Heart IH-634S-18 18oz Vintage Selvedge Denim Straight Cut Jeans - Indigo measures 33″ waist, 11.5″ front rise, 13″ thigh and 8.5″ leg opening. Sizes on its chart run from 1½″ under the tag to even with it, and each size up adds 1″.
| Size | Waist | Front Rise | Thigh | Leg Opening | Inseam |
|---|---|---|---|---|---|
| 28 | 28 | 10.25 | 11 | 7.5 | 35 |
| 29 | 29 | 10.5 | 11.5 | 7.5 | 35 |
| 30 | 29.75 | 10.5 | 11.5 | 7.75 | 35 |
| 31 | 30 | 10.75 | 12 | 8 | 35 |
| 32 | 31.5 | 11 | 12.5 | 8.25 | 35 |
| 33 | 32.5 | 11.25 | 12.5 | 8.25 | 35.5 |
| 34 | 33 | 11.5 | 13 | 8.5 | 35.5 |
| 35 | 34 | 11.75 | 13.25 | 8.75 | 35.5 |
| 36 | 35 | 12 | 13.5 | 9 | 35.5 |
| 38 | 36.5 | 12.5 | 14.25 | 9.25 | 35.75 |
| 40 | 39 | 12.5 | 15 | 9.75 | 36 |
| 42 | 41 | 12.5 | 15 | 9.75 | 36 |
| 44 | 42.5 | 12.75 | 15.25 | 10 | 36 |
Scroll the table sideways for the rest of the columns.
Listed under: Straight · Regular · Biggest Waists
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Where to buy
- Franklin & Poe (opens in new tab)$385In stock
- Rivet and Hide (opens in new tab)$385In stock
- Self Edge (opens in new tab)$385In stock
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About Iron Heart
Established in 2002 by Shinichi Haraki, Iron Heart began as a clothing brand for Japan’s motorcycling community, drawing on Haraki’s two decades in the Japanese garment industry, where he started as a pattern maker. Its company, Works Inc, is based in Japan with offices in Shibuya and Hachioji, and works mostly with small, family-run mills and workshops. The brand is known for heavyweight denim and durable fabrics, including Japanese-made jeans in cloth as heavy as 21oz and beyond.
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Source: retailer size chart (opens in new tab). Last verified 2026-08-15. Always confirm with the retailer before buying — fits are re-cut seasonally.