Iron Heart IH-888S-21 Size Chart
Every published measurement for the Iron Heart IH-888S-21, 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-888S-21 measures 34″ waist, 12″ front rise, 13″ thigh and 8.25″ leg opening. Sizes on its chart run from ½″ under the tag to even with it, and each size up adds 1″. From knee to hem, the leg narrows ¾″.
| Size | Waist | Front Rise | Back Rise | Thigh | Knee | Leg Opening | Inseam |
|---|---|---|---|---|---|---|---|
| 29 | 29 | 11 | 15.25 | 11.5 | 8 | 7.2 | 35.5 |
| 30 | 29.5 | 11.15 | 14.75 | 11.8 | 8.3 | 7.4 | 34 |
| 31 | 30.5 | 11.15 | 15.35 | 12.25 | 8.5 | 7.4 | 34.5 |
| 32 | 31.5 | 11.5 | 15.5 | 12.25 | 8.4 | 7.8 | 34.3 |
| 33 | 32.5 | 11.95 | 15.75 | 12.7 | 8.75 | 7.85 | 35.1 |
| 34 | 34 | 12 | 16 | 13 | 9 | 8.25 | 34.3 |
| 35 | 35 | 12.3 | 16.1 | 13.45 | 9.25 | 8.4 | 34.25 |
| 36 | 35.5 | 12.3 | 16.55 | 13.75 | 9.4 | 8.4 | 35.25 |
| 38 | 37.5 | 12.35 | 16.5 | 14.15 | 9.45 | 8.5 | 34.75 |
| 40 | 39.5 | 12.65 | 16.5 | 14.15 | 9.5 | 8.7 | 34.5 |
| 42 | 41.5 | 12.55 | 16.46 | 14.3 | 9.65 | 8.65 | 35.7 |
Scroll the table sideways for the rest of the columns.
Listed under: Tapered · Regular · Biggest Waists
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Where to buy
- BlackBlue (opens in new tab)$385In stock
- Guilty Party (opens in new tab)$385In stock
- Iron Shop Provisions (opens in new tab)$385In stock
- Rivet and Hide (opens in new tab)$385In stock
- Withered Fig (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 2026-07-12. Always confirm with the retailer before buying — fits are re-cut seasonally.