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A unique take on sustainable Japanese denim, the Big John Yoshidenim Wild Duck Jeans are crafted from a blend of cotton and recycled reed fibers from Lake Kojima. This innovative 13.5oz selvedge fabric offers a natural texture with a clean appearance, while the wide straight, high-rise fit delivers a timeless and structured silhouette. Finished with green selvedge ID and subtle eco-inspired details, these jeans represent a new direction in responsible craftsmanship.
| SIZE | 29 | 30 | 31 | 32 | 33 | 34 | 36 | 38 |
| Waist | 78 | 81 | 84 | 86 | 87 | 90 | 95 | 100 |
| Hip | 55.5 | 57 | 59 | 60 | 62 | 63 | 66 | 68 |
| Front Rise | 28.5 | 29.5 | 30 | 30.5 | 31 | 31 | 32 | 33 |
| Back Rise | 39.5 | 39.5 | 40.5 | 41.5 | 42 | 42 | 44 | 44.5 |
| Thigh | 36 | 36.2 | 37 | 37.5 | 38.5 | 38.5 | 39 | 41 |
| Knee | 27 | 27.5 | 28 | 28.5 | 29 | 29.8 | 30.5 | 31.5 |
| Leg Opening | 24 | 24.2 | 24.5 | 25 | 25.5 | 26.5 | 27.5 | 28 |
| Inseam | 85.5 | 85.5 | 85.5 | 85.5 | 85.5 | 85.5 | 85.5 | 85.5 |
You can have your jeans hemmed with our vintage Union Special 43200G Chainstitching Machine. 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 Big John “Yoshidenim” Green Label Wild Duck Jeans represent a thoughtful fusion of Japanese craftsmanship, sustainability, and innovative textile development. Developed as part of Big John’s eco-conscious “Green Label” line, this denim introduces a truly unique approach by incorporating reed fibers harvested from Lake Kojima—a material traditionally discarded despite its environmental impact.
These reeds, once removed annually to prevent pollution, are now repurposed into a functional and durable plant fiber, blended with cotton to create a fabric that is both lightly textured and surprisingly resilient. The result is a 13.5oz selvedge denim that feels natural, breathable, and subtly distinctive—offering a different character compared to conventional cotton-only denim.
Woven in Japan, this fabric reflects a philosophy of coexistence with nature, where sustainability does not compromise quality or aesthetics. The green selvedge ID—referred to as Midori Mimi—visually represents this environmental commitment, while the overall fabric maintains a clean, versatile appearance that will develop character with wear.
The silhouette is a wide straight fit with a high rise, delivering a strong vintage-inspired profile with modern wearability. It offers generous room through the top block and leg, allowing for comfort, structure, and a bold, well-balanced drape.
Details remain understated yet meaningful: green bar tacks and buttonholes, a custom duck-themed leather patch, and original Big John hardware complete the design. Every element reinforces the concept behind the garment—denim that is not only worn, but consciously made.
Fit Notes: These jeans have a standard sizing. We recommend choosing your usual size. However, as always, we recommend checking the size chart first to find your perfect size. Although the fabric is unsanforized, the jeans have been one-washed, so no further shrinkage is expected.
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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 | 29 | 30 | 31 | 32 | 33 | 34 | 36 | 38 |
| Waist | 78 | 81 | 84 | 86 | 87 | 90 | 95 | 100 |
| Hip | 55.5 | 57 | 59 | 60 | 62 | 63 | 66 | 68 |
| Front Rise | 28.5 | 29.5 | 30 | 30.5 | 31 | 31 | 32 | 33 |
| Back Rise | 39.5 | 39.5 | 40.5 | 41.5 | 42 | 42 | 44 | 44.5 |
| Thigh | 36 | 36.2 | 37 | 37.5 | 38.5 | 38.5 | 39 | 41 |
| Knee | 27 | 27.5 | 28 | 28.5 | 29 | 29.8 | 30.5 | 31.5 |
| Leg Opening | 24 | 24.2 | 24.5 | 25 | 25.5 | 26.5 | 27.5 | 28 |
| Inseam | 85.5 | 85.5 | 85.5 | 85.5 | 85.5 | 85.5 | 85.5 | 85.5 |









