Big John

Big John M25G 25oz Tough Jeans Straight Size Chart

Every published measurement for the Big John M25G 25oz Tough Jeans Straight, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.

CutRegular Straight
Maker's fit nameStraight
Fabric25oz Sanforized Selvedge Denim
MillNot listed
Sizes28–38

In a size 32, the Big John M25G 25oz Tough Jeans Straight measures 33.5″ waist, 12.5″ front rise, 12.25″ thigh and 7.75″ leg opening. Sizes on its chart run from 1¼″ over the tag to 1¾″ over it, and each size up adds 1″.

Measurements in inches, widths flat and waist doubled
SizeWaistFront RiseThighLeg OpeningInseam
2829.511.7511.25736.25
2930.251211.257.2536.25
3031.512.2511.57.536.25
3132.7512.2511.757.536.25
3233.512.512.257.7536.25
3334.2512.512.5836.25
3435.512.7512.58.2536.25
3637.7513.2513.258.7536.25
3839.2513.513.5936.25

Scroll the table sideways for the rest of the columns.

Listed under: Straight · Regular · High Rise

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About Big John

Big John began in 1940 as Maruo Clothing, a small sewing factory in Kojima, Okayama, founded by Kotaro Osaki to make workwear and school uniforms. The company turned to jeans in the 1960s, producing what it describes as Japan’s first domestically made jeans in 1965 under the Canton label, and launched the Big John name in 1967. In 1973, it introduced jeans made entirely in Japan, and it still produces its jeans domestically, including deep indigo selvedge denims developed for vintage-style fading.

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Source: retailer size chart (opens in new tab). Last verified 2026-07-29. Always confirm with the retailer before buying — fits are re-cut seasonally.