The Alpinestars SMX-S motorcycle boots are designed for riders who want dependable protection, comfort, and precise fit during street and sport riding. This black boot is sized for US 6 / EU 39 and features a durable, high-tech microfiber upper that provides flexibility while helping resist abrasion. The ergonomic last, shaped forefoot, and large throat profile support a comfortable riding position without restricting movement.
Protection is built into the SMX-S boot with double-injected polyurethane shields covering the shin, ankle, calf, toe, and heel. An additional internal protective panel is concealed beneath the outer shell and extends along the outer ankle for added impact coverage. The interchangeable bi-injected polyurethane toe slider uses a snap-in assembly, allowing convenient replacement when needed.
Comfort and ventilation are supported by a quick-drying polyamide lining laminated with open-cell foam and high-density contoured padding. Innovative air vents at the ankle, heel, and forefoot are covered with protective mesh to promote airflow. The anatomical, removable polyurethane foam footbed and MTP mesh liner help keep the foot cool and comfortable, while flex bellows at the instep and Achilles area improve mobility.
The exclusive Alpinestars rubber compound sole includes structured shank reinforcement for added arch support and stable foot placement. An inner medial-side entry system uses an elastic-mounted zipper and extra-wide hook-and-loop flap for a secure, adjustable fit and easier access. The Alpinestars SMX-S boots are supplied in the black US 6 / EU 39 configuration and are identified by manufacturer and vendor part number 2223517-1100-39.
Features:
- Size: US 6 / EU 39
- Color: Black
- Model: SMX-S
- Brand: Alpinestars
- Manufacturer Part Number: 2223517-1100-39
- Vendor Part Number: 2223517-1100-39
- Upper: Flexible, abrasion-resistant microfiber construction
- Protection: Double-injected polyurethane shields at the shin, ankle, calf, toe, and heel
- Toe Slider: Interchangeable bi-injected polyurethane slider with snap-in assembly
- Lining: Quick-drying polyamide lining with open-cell foam and contoured padding
- Ventilation: Mesh-covered air vents at the ankle, heel, and forefoot
- Sole: Alpinestars rubber compound sole with structured shank reinforcement
- Closure: Medial-side zipper with elastic mounting and wide hook-and-loop flap
- Fitment: Designed for motorcycle street and sport riding applications