Big John

Big John M104 "Gunjyo" Selvedge Denim Size Chart

Every published measurement for the Big John M104 "Gunjyo" Selvedge Denim, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.

CutRegular Straight
Maker's fit nameRegular Straight
Fabric14.5oz Sanforized Japanese Selvedge Denim (Gunjyo)
MillNot listed
Sizes29–38

In a size 33, the Big John M104 "Gunjyo" Selvedge Denim measures 34.6″ waist, 11.8″ front rise, 12″ thigh and 7.9″ leg opening. Sizes on its chart run from 1″ over the tag to 2.9″ over it, and each size up adds 0.8″. From knee to hem, the leg narrows 1.2″.

Measurements in inches, widths flat and waist doubled
SizeWaistFront RiseBack RiseThighKneeLeg OpeningInseam
2931.5111511.28.37.535.8
3032.3111511.48.57.535.8
3132.711.415.411.48.77.935.8
3233.911.615.4129.17.935.8
3334.611.815.7129.17.935.8
3435.41216.112.69.48.335.8
363712.216.5139.68.735.8
3840.912.616.913.610.29.135.8

Scroll the table sideways for the rest of the columns.

Listed under: Straight · Regular · Biggest Waists

Find jeans that measure like the size 33 →

Jeans that fit like the Big John M104 "Gunjyo" Selvedge Denim

All 10 closest fits, size by size →

Where to buy

Some store links earn Indigo & Asphalt a commission. It never changes which stores appear or how results rank.

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.

More Big John fits

All Big John denim →

Read next

Embed this size chart

Add this measurement table to your own site or post — it stays in sync with our data.

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.