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- The Lot.603 “The Pioneer” is one of Biltbuck’s signature motorcycle boots, inspired by the early days of motorcycle boot development and built with high-grade materials. This LTD limited edition further elevates the model by upgrading the leather to waxed heavyweight kipskin, giving the boot a richer texture and a more substantial presence.
The upper is made from exceptionally thick French kipskin, finished with a wax treatment. Kipskin is known for its fine grain and natural sheen, and the added wax enhances depth and durability. With wear, the leather gradually softens and conforms to the wearer’s foot, developing a comfortable, lived-in feel while maintaining its refined appearance.
A premium oak bark–tanned bends leather midsole is used for excellent durability and natural break-in comfort, paired with Biltbuck’s original separate sole for stable, dependable wear. The boot is built on the A012 Pioneer last, a straight-shaped last that offers a more relaxed fit than the A010 last used on the Lot.444. With a width around D–E, it provides an easy, comfortable fit suited for everyday use.
| Upper Material: | Heavyweight Waxed Kipskin |
| Midsole: | Oak Bark–Tanned Bends Leather |
| Outsole: | Biltbuck Original Separate Sole and Heel |
| Last: | Straight-Shaped A012 Pioneer Last |
| Buckle: | Sand-Cast Iron Buckle with Black Heat-Treated Finish |
| Construction: | Goodyear Welt Method |
| Width: | D-E |
| Origin: | Made in Japan |
| Notes: | |
| - Natural leather may show slight variations in grain and texture. | |
| - We generally recommend sizing down by half a size. | |
| US | JP | EU | UK |
|---|---|---|---|
| 6 | 24 | 39 | 5 |
| 6.5 | 24.5 | 39.5 | 5.5 |
| 7 | 25 | 40 | 6 |
| 7.5 | 25.5 | 40.5 | 6.5 |
| 8 | 26 | 41 | 7 |
| 8.5 | 26.5 | 41.5 | 7.5 |
| 9 | 27 | 42 | 8 |
| 9.5 | 27.5 | 42.5 | 8.5 |
| 10 | 28 | 43 | 9 |
| 10.5 | 28.5 | 43.5 | 9.5 |
| 11 | 29 | 44 | 10 |
| 11.5 | 29.5 | 44.5 | 10.5 |
| 12 | 30 | 45 | 11 |
• The size chart follows international sizing standards for reference.
• Sizing is based on the brand’s original last.
• Fit may vary slightly depending on foot shape and thickness of socks.
- Remove surface dust with a soft horsehair brush after each wear.
- For light dirt, wipe gently with a slightly damp cloth and allow the leather to air dry naturally.
- Avoid excessive moisture, as the leather may stiffen if overexposed to water.
- Heavy Weight Kipskin has a dense, smooth finish, so conditioning should be done lightly and only when needed.
- Apply a small amount of neutral leather cream when the surface appears dry or loses its natural luster.
- Use a soft cloth to work the product evenly into the leather, then lightly buff to restore a subtle shine.
- Minor scuffs can be reduced by brushing or gently buffing with a soft cloth.
- For more visible marks, apply a small amount of cream and work it into the area to help blend the surface.
- Over time, the leather will develop a natural patina, adding depth and character.
- Avoid prolonged exposure to direct sunlight or heat, which can dry and harden the leather.
- Store in a cool, well-ventilated space, away from humidity.
- Use shoe trees to maintain shape and help absorb internal moisture.
– Free domestic shipping on orders over ¥20,000 ( Tax included ).
– Free worldwide shipping is available, with thresholds varying by location.
– For more information, please refer to our Shipping Policy and Return & Refund Policy.
