Samurai Jeans

Samurai Jeans S0510XX-BOB Aoki Tachikage Regular Straight - 15oz Black-on-Blue Denim Size Chart

Every published measurement for the Samurai Jeans S0510XX-BOB Aoki Tachikage Regular Straight - 15oz Black-on-Blue Denim, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.

CutRegular Straight
Maker's fit nameUnknown
Fabric15oz Japanese Selvedge Denim (Black-on-Blue)
MillNot listed
Sizes30–38

In a size 34, the Samurai Jeans S0510XX-BOB Aoki Tachikage Regular Straight - 15oz Black-on-Blue Denim measures 33″ waist, 11.25″ front rise, 13.5″ thigh and 8.75″ leg opening. Every size on its chart measures 1″ under its tag, and each size up adds 1″.

Measurements in inches, widths flat and waist doubled
SizeWaistFront RiseThighLeg OpeningInseam
302910.512.25835
313010.75138.2535.25
323110.75138.2535.5
33321113.258.7535.5
343311.2513.58.7535.5
353411.513.5935.5
363511.7514935.5
38371214.759.535.5

Scroll the table sideways for the rest of the columns.

Listed under: Straight · Regular · Roomiest Thighs

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About Samurai Jeans

Founded in Osaka in 1997 by Toru Nogami, Samurai Jeans is known for heavyweight selvedge denim, with fabrics ranging from 15oz to 25oz. The brand pays close attention to cotton quality, climate, and dyeing methods, works with vintage machinery, and grows some of its own cotton in Hyogo Prefecture through its Samurai Cotton Farm project. Its jeans carry details such as iron buttons and silver lamé selvedge, along with imagery drawn from Sengoku-era samurai, and the S510XX remains one of its best-known models.

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Source: retailer size chart (opens in new tab). Last verified 2026-08-15. Always confirm with the retailer before buying — fits are re-cut seasonally.