Big John

Big John M101SLB-001 12oz "GL3" Vintage Slub Selvedge Denim Size Chart

Every published measurement for the Big John M101SLB-001 12oz "GL3" Vintage Slub Selvedge Denim, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.

CutRelaxed Wide
Maker's fit nameWide Straight
Fabric12oz Rinsed: Given one light wash before sale: sanforized, one-washed, or rinsed. Minimal further shrinkage. Selvedge Denim (American/Australian Cotton)
MillNot listed
Sizes30–38

In a size 34, the Big John M101SLB-001 12oz "GL3" Vintage Slub Selvedge Denim measures 34.3″ waist, 12.6″ front rise, 13.6″ thigh and 9.8″ leg opening. Sizes on its chart run from ½″ under the tag to 0.7″ over it. From knee to hem, the leg narrows 2″.

Measurements in inches, widths flat and waist doubled
SizeWaistFront RiseBack RiseThighKneeLeg OpeningInseam
3030.7121513119.132.5
3231.512.215.213.211.49.432.5
3434.312.616.113.611.89.832.5
3636.21316.514.412.210.232.5
3838.613.417.314.612.610.632.5

Scroll the table sideways for the rest of the columns.

Listed under: Wide · Relaxed · 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 2026-07-30. Always confirm with the retailer before buying — fits are re-cut seasonally.