Okayama Denim

Okayama Denim OD+MJ 15.7oz. "Frost" Nep Selvedge Jeans (Slim Straight) Size Chart

Every published measurement for the Okayama Denim OD+MJ 15.7oz. "Frost" Nep Selvedge Jeans (Slim Straight), size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.

CutSlim Straight
Maker's fit nameSlim Straight
Fabric15.7oz Sanforized Momotaro Original Nep Selvedge denim
MillNot listed
Sizes30–40

In a size 34, the Okayama Denim OD+MJ 15.7oz. "Frost" Nep Selvedge Jeans (Slim Straight) measures 35″ waist, 11.75″ front rise, 13.25″ thigh and 8.75″ leg opening. Sizes on its chart run from 1″ over the tag to 1½″ over it, and each size up adds ⅞″. From knee to hem, the leg narrows ¾″.

Measurements in inches, widths flat and waist doubled
SizeWaistFront RiseBack RiseThighKneeLeg OpeningInseam
303110.7514.7511.758.5835
31321115128.758.2535
3233.511.2515.2512.598.535
3334.2511.515.512.759.258.7535
343511.7515.7513.259.58.7535
363712.2516.2513.59.75935
3839.2512.7516.7514.2510.59.7535
404113.2517.2514.7510.759.7535

Scroll the table sideways for the rest of the columns.

Listed under: Straight · Slim · Biggest Waists

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About Okayama Denim

Okayama Denim grew out of the Okayama Denim Project, which Merv Sethi began in 2011 to raise money for the Japanese Red Cross after the Great East Japan Earthquake. The company is based in Tokyo and operates entirely from Japan as an online retailer of Japanese selvedge denim, and it was shipping to more than 70 countries by 2019. Its jeans are collaborations with Japanese makers, including Pure Blue Japan, Japan Blue, Samurai, Studio D’Artisan, Momotaro, and Big John, often in fabrics made exclusively for the store, such as the “Luxe” selvedge woven by Nihon Menpu in Ibara.

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Source: retailer size chart (opens in new tab). Last verified 2026-09-01. Always confirm with the retailer before buying — fits are re-cut seasonally.