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Pure Blue Japan's regular straight in 16oz Double Nep selvedge denim — nep yarn in both warp and weft, indigo over a sumi-dyed weft for a deeper, smoky blue. Made in Japan.
| SIZE | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 38 | 40 | 42 |
| Waist | 72 | 74 | 78 | 79 | 84 | 85 | 88 | 93 | 98 | 104 |
| Hip | 52 | 53 | 55 | 57 | 58 | 59 | 61 | 62 | 66 | 69 |
| Front Rise | 27.5 | 27.5 | 28 | 28 | 28 | 29.5 | 29.5 | 31 | 31 | 32 |
| Back Rise | 38 | 38 | 38 | 39 | 39 | 40 | 40 | 40 | 41 | 42.5 |
| Thigh | 29.5 | 30 | 30.5 | 32 | 32 | 33 | 33.5 | 34.5 | 36 | 37 |
| Knee | 22 | 22.5 | 23 | 24 | 24.5 | 25 | 25 | 25.5 | 26 | 26.5 |
| Leg Opening | 19 | 20 | 20 | 21 | 21 | 22 | 22.5 | 23 | 23 | 24 |
| Inseam | 84 | 83 | 85 | 84.5 | 84 | 83.5 | 83 | 83.5 | 83 | 84 |
Model size
Dave is 182 cm (5'11") tall, weighs 77 kg (170 lbs), and wears a size 32.
You can have your jeans hemmed with our vintage Union Special 43200G Chainstitching Machine, sewn with premium Ujyo Bussan thread from Okayama— the same thread used by most Japanese denim makers.
The cost for this service is €10,00 and will be added to your cart. Please remember that hemmed jeans or pants are non-returnable, so make sure to carefully check the size chart.
• It will take 4-5 additional business days.
• Please follow our measuring guide to check your inseam.
Most mills comb neps out of their yarn. Pure Blue Japan leaves them in, and for its Double Nep denim it uses nep yarn in both the warp and the weft rather than the usual one. Neps are the small knots and flecks of short cotton fiber that show up as pale specks and bumps on the surface, and doubling them gives this 16oz selvedge denim a dry, rough, uneven hand closer to homespun cloth than to conventional denim. The DNP-003-IDSM puts that fabric on the brand's regular straight cut.
Color does the rest. The warp is rope-dyed indigo; the weft is dyed with sumi, the ink of Japanese calligraphy, made from natural soot bound with glue and ground with water before it is applied to the yarn. Where a white weft would make the indigo read bright, the sumi weft pulls it deeper — a smoky, subdued blue-black with no glare. Pure Blue Japan keeps the details in the same key: the deerskin leather patch, the embroidered leaf emblem on the back pocket and even the sewing thread are tone-matched to the fabric, so nothing interrupts the surface.
Wear will bring the blue forward at the knees, seat and seams, but with a sumi-dyed weft underneath, the fades never go to white: they keep the smoky cast of the fabric, while the neps wear first and push the texture further forward. At 16oz the denim starts stiff and takes its time, which is the point of a fabric like this.
The 003 is Pure Blue Japan's regular straight: a high rise, and a leg that runs straight from the knee to the hem — the classic five-pocket line, with room to move, and an easy frame for a fabric with this much texture.
Woven in Okayama on shuttle looms, with a button fly and iron buttons, hidden rivets on the back pockets, herringbone twill pocket lining and a chain-stitched hem and waistband. Unsanforized and one-washed. Made in Japan.
Fit Notes: Pure Blue Japan sizes usually run a bit small compared to most global American brands, and this pair slightly more so: the waist measures at or just under the tagged size. We recommend going one size up from your usual size, or taking your usual size only if you want a snug fit from day one. The denim is unsanforized and one-washed, and it stretches at the waist with wear (up to 1"). We don't recommend sizing down, as starting too tight may cause discomfort and alter the intended fit of the garment. As always, we strongly recommend checking our size chart and comparing it with your best-fitting garment to ensure the right fit.
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Details
Shipping
Spain
FREE SHIPPING on orders over 100 EUR .
6 EUR shipping cost on orders under the value mentioned above.
European Union & The UK
FREE SHIPPING on orders over 150 EUR \\.
14 EUR shipping cost on orders under the value mentioned above.
Rest of the World
FREE SHIPPING on orders over 250 EUR .
25 EUR shipping cost on orders under the value mentioned above.
Returns
If for some reason you are not happy with your purchase you can return it to us within 14 days for a size exchange or refund.
For more info please visit our returns & exchange page.
Please note that items in the SALE category are considered FINAL SALE, with no returns or exchanges accepted.
Reviews
| SIZE | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 38 | 40 | 42 |
| Waist | 72 | 74 | 78 | 79 | 84 | 85 | 88 | 93 | 98 | 104 |
| Hip | 52 | 53 | 55 | 57 | 58 | 59 | 61 | 62 | 66 | 69 |
| Front Rise | 27.5 | 27.5 | 28 | 28 | 28 | 29.5 | 29.5 | 31 | 31 | 32 |
| Back Rise | 38 | 38 | 38 | 39 | 39 | 40 | 40 | 40 | 41 | 42.5 |
| Thigh | 29.5 | 30 | 30.5 | 32 | 32 | 33 | 33.5 | 34.5 | 36 | 37 |
| Knee | 22 | 22.5 | 23 | 24 | 24.5 | 25 | 25 | 25.5 | 26 | 26.5 |
| Leg Opening | 19 | 20 | 20 | 21 | 21 | 22 | 22.5 | 23 | 23 | 24 |
| Inseam | 84 | 83 | 85 | 84.5 | 84 | 83.5 | 83 | 83.5 | 83 | 84 |











