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A refined vintage straight jean by Japan Blue from the ReDESIGN Label — crafted from 12oz selvedge denim with a medium indigo laser-finished wash, playful paint splatters, and a timeless straight silhouette.
| SIZE | 28 | 30 | 32 | 34 | 36 | 38 |
| Waist | 74 | 78 | 84 | 90 | 94 | 100 |
| Hip | 52 | 54 | 58 | 59 | 63 | 65 |
| Front Rise | 28 | 28 | 29 | 29 | 30 | 31 |
| Back Rise | 36 | 37 | 38 | 38 | 39 | 40 |
| Thigh | 29.5 | 31 | 32 | 33 | 34 | 36 |
| Knee | 24 | 24.5 | 25 | 25.5 | 26 | 27 |
| Leg Opening | 19 | 20 | 20 | 20.5 | 21 | 22 |
| Inseam | 81 | 81.5 | 82 | 82 | 83 | 83 |
Model size
David is 185 cm (6'1") tall, weighs 76 kg (167 lbs), and wears a size 30.
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.
The Japan Blue JMJA2100 belongs to the brand's ReDESIGN Label — a considered line born from the concept of rediscovering denim through design. Where most vintage-inspired denim relies on faithful reproduction, ReDESIGN takes a different approach: reimagining denim's natural aging and wear as intentional design elements, and reconstructing them through the lens of world-class craftsmanship.
The fabric is an original 12oz selvedge denim that combines an authentic, classic appearance with a surprisingly lightweight feel and soft, comfortable hand. Woven at Japan Blue's own mill in Kojima, Okayama, the cloth carries the honest character of traditional selvedge production alongside the refined touch that defines the brand today. The warp threads are dyed with pure indigo, developing a remarkably faithful, natural blue tone as the denim ages.
The wash is where this model reveals its most distinctive character. Applied through Kojima-Okayama's world-class processing know-how, the finish blends skilled handwork with advanced processing techniques to create realistic used-denim effects that only seasoned artisans can achieve. The subtle highlights, whiskers, and puckering unique to selvedge denim are captured in data and faithfully reproduced across the fabric, delivering a rich lived-in character from day one. Playful paint splatters add an expressive, personal edge to the design — turning wear into a deliberate signature.
The silhouette is a classic straight fit with a relaxed hip that gently tapers down to form a clean, straight leg through the hem. Pattern engineering follows the ReDESIGN philosophy of modern three-dimensional silhouettes — beautifully studied to flatter without clinging, and built for the comfort of daily wear.
Construction details are kept intentionally minimalist to preserve the clean visual identity: a UNIVERSAL Japan® metal zipper fly, copper male rivets, a blue cowhide leather patch, and a distinctive blue selvedge ID that quietly signals the new-line origins.
Fit Notes: This model fits true to size, and is only produced in even-numbered sizes. Compared to most global American brands, we recommend taking your usual size for the intended fit. If you fall between two sizes, we recommend sizing down to the closest available size. As the denim has been laser-washed, no shrinkage is expected. As always, we strongly recommend checking our size chart and comparing it with your best-fitting pair to find the perfect size.
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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 | 28 | 30 | 32 | 34 | 36 | 38 |
| Waist | 74 | 78 | 84 | 90 | 94 | 100 |
| Hip | 52 | 54 | 58 | 59 | 63 | 65 |
| Front Rise | 28 | 28 | 29 | 29 | 30 | 31 |
| Back Rise | 36 | 37 | 38 | 38 | 39 | 40 |
| Thigh | 29.5 | 31 | 32 | 33 | 34 | 36 |
| Knee | 24 | 24.5 | 25 | 25.5 | 26 | 27 |
| Leg Opening | 19 | 20 | 20 | 20.5 | 21 | 22 |
| Inseam | 81 | 81.5 | 82 | 82 | 83 | 83 |











