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 size US 11.5, EU 46 boot features a durable high-tech microfiber upper that balances flexibility with abrasion resistance. The ergonomic last, shaped forefoot, large throat profile, and Achilles flex bellows support natural movement while maintaining 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. A concealed inner protective panel connects to the heel counter and extends along the outer ankle for additional impact and abrasion protection. The interchangeable bi-injected polyurethane toe slider uses a convenient snap-in assembly, while the exclusive compound rubber sole incorporates structured shank reinforcement to support the arch area.
Comfort and ventilation are supported by a quick-drying polyamide lining laminated with open-cell foam and high-density contoured padding to help absorb shocks around the foot. Air vents at the ankle, heel, and forefoot are covered with purpose-designed mesh to promote airflow. The MTP mesh liner and removable anatomical polyurethane foam footbed help keep the foot cool and comfortable. An inner-side entry system uses an elastic-mounted zipper and wide hook-and-loop flap for easy access and a precise fit.
Manufactured by Alpinestars and supplied under vendor part number 2223517-12-46, these SMX-S boots fit riders requiring a US 11.5 or EU 46 motorcycle boot. They are suitable for street and sport applications where flexible movement, ventilation, sole support, and integrated lower-leg and foot protection are important.
Features:
- Size: US 11.5 / EU 46
- Model: SMX-S motorcycle boots
- Color: Black/White
- Brand: Alpinestars
- Manufacturer: Alpinestars
- Vendor Part Number: 2223517-12-46
- Upper: Durable high-tech microfiber construction for flexibility and abrasion resistance
- Protection: Double-injected polyurethane shields protect the shin, ankle, calf, toe, and heel
- Inner Protection: Concealed double-injected panel extends from the heel counter along the outer ankle
- Toe Slider: Interchangeable bi-injected polyurethane slider with snap-in assembly
- Sole: Exclusive rubber compound with structured shank reinforcement for arch support
- Lining: Quick-drying polyamide lining with open-cell foam and contoured padding
- Ventilation: Mesh-covered air vents at the ankle, heel, and forefoot
- Comfort: MTP mesh liner and removable anatomical polyurethane foam footbed
- Closure: Inner-side elastic-mounted zipper with wide hook-and-loop flap
- Fit: Ergonomic last, shaped forefoot, and flex bellows for precise fit and movement
- Fitment: Designed for street and sport motorcycle riding