Japan Blue

Japan Blue J504 "African Cotton" 12.5oz Indigo Selvedge Denim Size Chart

Every published measurement for the Japan Blue J504 "African Cotton" 12.5oz Indigo Selvedge Denim, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.

CutRelaxed Straight
Maker's fit nameLoose Straight
Fabric12.5oz Indigo Selvedge Denim
MillCollect Mills
Sizes29–38

In a size 33, the Japan Blue J504 "African Cotton" 12.5oz Indigo Selvedge Denim measures 33.5″ waist, 13″ front rise, 13.25″ thigh and 8.75″ leg opening. Sizes on its chart run from ¼″ under the tag to ¾″ over it, and each size up adds 1″. From knee to hem, the leg narrows 1½″.

Measurements in inches, widths flat and waist doubled
SizeWaistFront RiseThighKneeLeg OpeningInseam
292912129.25832.5
303012.2512.59.658.2532.5
3131.512.7512.859.88.532.5
323212.7513108.532.5
3333.51313.2510.258.7532.5
3433.7513.2513.7510.4932.5
3636.513.7514.511.159.533
3838.751414.911.59.8533

Scroll the table sideways for the rest of the columns.

Listed under: Straight · Relaxed · High Rise · Roomiest Thighs

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About Japan Blue

Established in 2010 by the COLLECT mill in Kojima, Okayama, Japan Blue Jeans began as an in-house project of the Japan Blue Group, with Hiroki Kishimoto credited as its founder. The brand builds on the group’s own fabric development, holding that making jeans is making fabric, and its garments are cut, sewn, and finished in Kojima. Its selvedge denim is woven on vintage shuttle looms, often with rope dyeing and slub textures. The label launched with a single 14.8 oz. U.S. cotton selvedge fabric and now spans a wide range of weights and weaves.

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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.