The Alpinestars SMX-S Boots provide dependable protection, comfort, and support for street and sport motorcycle riding. Designed in a Black/White colorway and sized for US 9.5 / EU 44, these boots use a durable microfiber upper that balances flexibility with abrasion resistance. The ergonomic last is shaped for a precise fit, while the large instep and Achilles flex bellows support natural movement when walking or riding.
Protection is built into the SMX-S design with double-injected polyurethane shields covering the shin, ankle, calf, toe, and heel. An additional inner protection panel connects to the heel counter and extends along the outer ankle beneath the exterior shell. The interchangeable bi-injected polyurethane toe slider uses a snap-in assembly for convenient replacement. A structured shank within the exclusive Alpinestars rubber compound sole reinforces the arch area and helps provide stable support on and off the motorcycle.
Comfort features include a quick-drying polyamide lining laminated with open-cell foam and high-density contoured padding to help absorb impact around the foot. Air vents at the ankle, heel, and forefoot are protected by specially designed mesh to promote airflow. The MTP mesh liner and removable anatomical polyurethane foam footbed help maintain a cool, comfortable interior. An inner medial-side entry system combines an elastic-mounted zipper with an extra-wide hook-and-loop flap, providing a secure, adjustable fit and a wide opening for easier access.
This product is manufactured by Alpinestars and is identified by manufacturer part number 2223517-12-44 and vendor part number 2223517-12-44. The SMX-S Boots are intended for motorcycle riders seeking a supportive, protective riding boot with a precise fit and practical ventilation.
Features:
- Brand: Alpinestars
- Model: SMX-S
- Size: US 9.5 / EU 44
- Color: Black/White
- Manufacturer Part Number: 2223517-12-44
- Vendor Part Number: 2223517-12-44
- Upper: Durable, flexible microfiber construction
- Protection: Double-injected polyurethane shields cover 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 exclusive rubber compound with structured shank reinforcement
- Fit System: Medial-side zipper with elastic mounting and extra-wide hook-and-loop flap
- Footbed: Removable anatomical polyurethane foam footbed
- Fitment: Designed for motorcycle riding and sport or street motorcycle applications