Big John S1956W-001 14oz Ishikawadai Denim Size Chart
Every published measurement for the Big John S1956W-001 14oz Ishikawadai Denim, size by size, widths flat and waist doubled, the numbers the tag size doesn't tell you.
In a size 32, the Big John S1956W-001 14oz Ishikawadai Denim measures 32.75″ waist, 11.75″ front rise, 13.5″ thigh and 7.75″ leg opening. Sizes on its chart run from ½″ over the tag to ¾″ over it, and each size up adds 1″. From knee to hem, the leg narrows 2½″.
| Size | Waist | Front Rise | Thigh | Knee | Leg Opening | Inseam |
|---|---|---|---|---|---|---|
| 28 | 28.75 | 11 | 12.5 | 9.5 | 7 | 31.5 |
| 29 | 29.75 | 11.25 | 12.75 | 9.75 | 7.25 | 31.5 |
| 30 | 30.75 | 11.5 | 13 | 9.75 | 7.5 | 31.5 |
| 31 | 31.75 | 11.5 | 13.25 | 10 | 7.75 | 31.5 |
| 32 | 32.75 | 11.75 | 13.5 | 10.25 | 7.75 | 31.5 |
| 33 | 33.75 | 12 | 13.75 | 10.5 | 8 | 31.5 |
| 34 | 34.75 | 12.25 | 14 | 10.75 | 8.25 | 31.5 |
| 36 | 36.5 | 12.5 | 14.5 | 11 | 8.75 | 31.5 |
| 38 | 38.5 | 13 | 15 | 11.5 | 9 | 31.5 |
Scroll the table sideways for the rest of the columns.
Listed under: Tapered · Regular · Roomiest Thighs
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Where to buy
- Big John (opens in new tab)¥27,500In stock
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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 2026-10-16. Always confirm with the retailer before buying — fits are re-cut seasonally.