The Alpinestars SMX-S motorcycle boots are designed for riders seeking dependable protection, comfort, and precise fit during street and sport riding. This black and white model is sized for US 6 and EU 39 footwear sizing and features a durable, high-tech microfiber upper that provides flexibility while helping resist abrasion. The ergonomic last follows the natural shape of the foot for a secure, performance-oriented fit.
Protection is built into the SMX-S Boot with double-injected polyurethane shields covering the shin, ankle, calf, toe, and heel. An additional inner protection panel is positioned beneath the outer shell and extends along the outside of the ankle. The interchangeable bi-injected polyurethane toe slider uses a snap-in assembly, while the exclusive compound rubber sole includes structured shank reinforcement to support the arch and improve control when riding. These features make the boots suitable for motorcycle street riding and sport-oriented applications where foot and lower-leg protection are important.
Comfort and ventilation are supported by a quick-drying polyamide lining laminated with open-cell foam and contoured high-density padding. Air vents at the ankle, heel, and forefoot are covered with specialized mesh to encourage airflow, while the MTP mesh liner and removable anatomical polyurethane foam footbed help maintain a cooler, more comfortable interior. A large throat profile instep and Achilles flex bellows allow natural movement, and the medial side entry system uses an elastic-mounted zipper with a wide hook-and-loop flap for convenient access and a precise closure.
This product is manufactured by Alpinestars and is identified by manufacturer part number 2223517-12-39 and vendor part number 2223517-12-39. Confirm the US 6 / EU 39 size and SMX-S model before ordering to ensure proper fitment.
Features:
- Size: US 6 / EU 39
- Model: SMX-S motorcycle boot
- Brand: Alpinestars
- Manufacturer part number: 2223517-12-39
- Vendor part number: 2223517-12-39
- Color: Black/White
- Material: Flexible, abrasion-resistant microfiber upper
- Protection: Double-injected polyurethane shields for the shin, ankle, calf, toe, and heel
- Toe slider: Interchangeable bi-injected polyurethane slider with snap-in assembly
- Sole: Compound rubber sole with structured shank reinforcement
- Ventilation: Air vents at the ankle, heel, and forefoot with protective mesh covering
- Comfort: Quick-drying lining, contoured padding, and removable anatomical polyurethane foam footbed
- Closure: Medial side entry with elastic-mounted zipper and wide hook-and-loop flap
- Fitment: Designed for motorcycle street and sport riding applications