3sixteen RS-203x ~ Relaxed Straight ~ Black Selvedge Size Chart
Every published measurement for the 3sixteen RS-203x ~ Relaxed Straight ~ Black Selvedge, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.
In a size 33, the 3sixteen RS-203x ~ Relaxed Straight ~ Black Selvedge measures 33″ waist, 12.75″ front rise, 13″ thigh and 9″ leg opening. Every size on its chart measures even with its tag, and each size up adds 1″. From knee to hem, the leg narrows 1¼″.
| Size | Waist | Front Rise | Back Rise | Thigh | Knee | Leg Opening | Inseam |
|---|---|---|---|---|---|---|---|
| 28 | 28 | 11.75 | 16 | 11.5 | 9.25 | 8.25 | 34 |
| 29 | 29 | 12 | 16 | 12 | 9.5 | 8.25 | 34.5 |
| 30 | 30 | 12.25 | 16.25 | 12.25 | 9.75 | 8.75 | 34.5 |
| 31 | 31 | 12.5 | 16.5 | 12.5 | 9.75 | 9 | 34.5 |
| 32 | 32 | 12.75 | 16.5 | 12.75 | 10 | 9 | 34.5 |
| 33 | 33 | 12.75 | 16.75 | 13 | 10.25 | 9 | 34.5 |
| 34 | 34 | 13 | 17 | 13 | 10.25 | 9 | 34.5 |
| 35 | 35 | 13 | 17 | 13.5 | 10.5 | 9.25 | 35 |
| 36 | 36 | 13.25 | 17.25 | 14 | 10.5 | 9.5 | 36 |
| 38 | 38 | 13.5 | 17.5 | 14.5 | 10.75 | 9.75 | 36 |
| 40 | 40 | 13.5 | 17.5 | 14.5 | 11 | 10 | 37 |
Scroll the table sideways for the rest of the columns.
Listed under: Straight · Relaxed · High Rise · Biggest Waists
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Where to buy
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About 3sixteen
Founded in 2003 and owned by Andrew Chen and Johan Lam, 3sixteen started out making graphic tees, hoodies, and embroidered hats before moving into denim. Its modern history began in 2008 with its first pair of jeans, the SL-100x. Much of the brand’s denim is custom-made with Kuroki Mills in Okayama, Japan, on vintage Toyoda shuttle looms, and its leather patches come from Tanner Goods in Portland, Oregon. 3sixteen runs flagship stores in Los Angeles and New York and treats each jean it adds as a permanent part of its lineup.
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Source: retailer size chart (opens in new tab). Last verified 2026-10-16. Always confirm with the retailer before buying — fits are re-cut seasonally.