Japan Blue

Japan Blue J401-D01 "US Cotton Dark Wash" 14.8oz Washed Selvedge Denim Size Chart

Every published measurement for the Japan Blue J401-D01 "US Cotton Dark Wash" 14.8oz Washed Selvedge Denim, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.

CutRegular Straight
Maker's fit nameClassic Straight
Fabric14.8oz Washed: Deliberately faded or aged, like a stonewash or vintage wash. Selvedge Denim
MillCollect Mills
Sizes30–38

In a size 33, the Japan Blue J401-D01 "US Cotton Dark Wash" 14.8oz Washed Selvedge Denim measures 33″ waist, 12″ front rise, 12.9″ thigh and 8″ leg opening. Sizes on its chart run from ¼″ under the tag to even with it, and each size up adds 1″. From knee to hem, the leg narrows 1.4″.

Measurements in inches, widths flat and waist doubled
SizeWaistFront RiseThighKneeLeg OpeningInseam
303011.2511.98.77.431
313111.512.258.857.531
323211.512.59.27.7531
33331212.99.4831
3433.751213.259.658.2531
363612.513.75108.731
383812.7514.410.4931.5

Scroll the table sideways for the rest of the columns.

Listed under: Straight · Regular

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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.