Iron Heart IH-634-XHS Size Chart
Every published measurement for the Iron Heart IH-634-XHS, 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-634-XHS measures 36″ waist, 11.5″ front rise, 13.25″ thigh and 9.38″ leg opening. Sizes on its chart run from 1½″ over the tag to 2″ over it, and each size up adds 1″. From knee to hem, the leg narrows ⅜″.
| Size | Waist | Front Rise | Back Rise | Thigh | Knee | Leg Opening | Inseam |
|---|---|---|---|---|---|---|---|
| 31 | 32.76 | 10.81 | 15 | 12.25 | 9.25 | 8.8 | 36.45 |
| 32 | 34 | 11 | 15.25 | 12.69 | 9.3 | 8.93 | 36.65 |
| 33 | 35 | 11.25 | 15.38 | 12.88 | 9.5 | 9.18 | 36.68 |
| 34 | 36 | 11.5 | 15.56 | 13.25 | 9.75 | 9.38 | 36.7 |
| 35 | 37 | 11.75 | 15.68 | 13.56 | 10 | 9.5 | 37.1 |
| 36 | 37.5 | 11.81 | 16.05 | 14.5 | 10.12 | 10.5 | 36.56 |
Scroll the table sideways for the rest of the columns.
Listed under: Straight · Regular
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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 2026-09-22. Always confirm with the retailer before buying — fits are re-cut seasonally.