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The Samurai Jeans S500AX “AI Plus” are crafted from a unique 18oz fabric combining standard indigo, natural indigo, and Samurai Cotton through a special rope-dyeing method. Featuring a classic regular straight fit, premium hardware, and intricate two-tone stitching, they embody Samurai’s highest level of craftsmanship. A standout piece for denim collectors.
| SIZE | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 38 | 40 |
| Waist | 78 | 80 | 82 | 83 | 85 | 87 | 89 | 95 | 99 |
| Hip | 54.5 | 56.5 | 57 | 57.5 | 58 | 59 | 61.5 | 64.5 | 66 |
| Front Rise | 27 | 27.3 | 27.4 | 27.8 | 28.5 | 29 | 30 | 30 | 30.5 |
| Back Rise | 36 | 36.5 | 37 | 37.3 | 37.8 | 38.2 | 39 | 39.5 | 40.5 |
| Thigh | 30.5 | 31 | 31.5 | 31.8 | 32.5 | 33 | 33.5 | 35.2 | 36 |
| Knee | 21.5 | 22 | 22.3 | 22.5 | 23.3 | 23.7 | 24.2 | 25.5 | 26 |
| Leg Opening | 20 | 20.5 | 21 | 21.3 | 21.5 | 22 | 22.5 | 23.5 | 24.5 |
| Inseam | 91 | 91 | 91 | 91 | 91 | 91 | 91 | 91 | 91 |
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 Samurai Jeans S500AX “AI Plus” 18oz Regular Straight Jeans represent a bold fusion of traditional craftsmanship and modern denim innovation. Made in Japan, this model features a distinctive 18oz AI+ fabric that blends standard indigo, natural indigo (ai-zome) and Samurai Cotton through a special rope-dyeing technique, creating a uniquely deep, saturated color and a rugged, tactile texture beloved by denim enthusiasts.
The regular straight fit with a gentle taper offers everyday versatility and long-lasting comfort. Every detail reflects Samurai’s obsessive approach to craftsmanship: a leather patch illustrating an indigo-dyer artisan, silver-painted “taiko” drum buttons, copper coin-style rivets, and AI+ printed pocket bags, all complemented by a special flasherexclusive to this model.
Construction is equally exceptional, with two-tone stitching in banana yellow and golden brown, executed with varying stitch counts, needle gauges, and widths across the garment — a testament to Samurai’s precision and dedication. The result is a pair of jeans that epitomizes the brand’s relentless pursuit of quality, authenticity, and innovation in Japanese denim.
Fit Notes: Like many Samurai Jeans models, this one runs slightly small in the one-wash version. In general, we recommend selecting one size up from your usual. As always, please refer to the size chart to confirm the best fit. The denim is unsanforized but the jeans have been one-washed, so no additional shrinkage will occur.
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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 |
| Waist | 78 | 80 | 82 | 83 | 85 | 87 | 89 | 95 | 99 |
| Hip | 54.5 | 56.5 | 57 | 57.5 | 58 | 59 | 61.5 | 64.5 | 66 |
| Front Rise | 27 | 27.3 | 27.4 | 27.8 | 28.5 | 29 | 30 | 30 | 30.5 |
| Back Rise | 36 | 36.5 | 37 | 37.3 | 37.8 | 38.2 | 39 | 39.5 | 40.5 |
| Thigh | 30.5 | 31 | 31.5 | 31.8 | 32.5 | 33 | 33.5 | 35.2 | 36 |
| Knee | 21.5 | 22 | 22.3 | 22.5 | 23.3 | 23.7 | 24.2 | 25.5 | 26 |
| Leg Opening | 20 | 20.5 | 21 | 21.3 | 21.5 | 22 | 22.5 | 23.5 | 24.5 |
| Inseam | 91 | 91 | 91 | 91 | 91 | 91 | 91 | 91 | 91 |









