Iron Heart

Iron Heart / 20th Anniversary Collection / DH 21cm MIJ Plus REP SEXIH01 Remastered Size Chart

Every published measurement for the Iron Heart / 20th Anniversary Collection / DH 21cm MIJ Plus REP SEXIH01 Remastered, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.

CutRegular Straight
Maker's fit nameUnknown
FabricUnknown
MillNot listed
Sizes30–40

In a size 34, the Iron Heart / 20th Anniversary Collection / DH 21cm MIJ Plus REP SEXIH01 Remastered measures 32.5″ waist, 11.5″ front rise, 11.75″ thigh and 8.25″ leg opening. Sizes on its chart run from 1½″ under the tag to 1″ under it, and each size up adds ¾″. From knee to hem, the leg narrows ½″.

Measurements in inches, widths flat and waist doubled
SizeWaistFront RiseBack RiseThighKneeLeg OpeningInseam
302910.7514.7510.57.757.536.5
313010.75151187.7535.75
3230.511.2515.2511.258.25836
333211.515.511.58.5836
3432.511.515.7511.758.758.2536.25
3634.51215.7512.2598.536
3836.512.2516.25139.25936
4038.512.7516.513.259.759.2536

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 2026-10-30. Always confirm with the retailer before buying — fits are re-cut seasonally.