The Alpinestars SMX-S motorcycle boots are designed for riders seeking a precise fit, dependable protection, and everyday comfort. This black model is sized for US 8 / EU 42 and features a durable microfiber upper that balances flexibility with abrasion resistance. The highly ergonomic last follows the natural shape of the foot, while the large instep and Achilles flex bellows support comfortable movement on and off the motorcycle.
Protection is built into the boot through double-injected polyurethane shields covering the shin, ankle, calf, toe, and heel. An additional reinforced panel beneath the outer shell extends along the medial ankle and connects with the heel counter for added impact protection. The interchangeable, bi-injected polyurethane toe slider uses a snap-in assembly for convenient replacement. The Alpinestars exclusive compound rubber sole includes structured shank reinforcement to support the arch and improve riding stability.
Comfort and ventilation are supported by a quick-drying polyamide lining laminated with open-cell foam and contoured high-density padding. Mesh-covered air vents at the ankle, heel, and forefoot help promote airflow, while the MTP mesh liner and removable anatomical polyurethane foam footbed help keep the foot cool and supported. An inner-side entry system combines an elastic-mounted zipper with an extra-wide hook-and-loop flap, creating a secure, adjustable closure and a wide opening for easier access.
Manufacturer: Alpinestars. Brand: Alpinestars. Vendor part number: 2223517-1100-42. This product is intended for motorcycle riding and is designed to fit riders requiring a US 8 / EU 42 boot size. Verify sizing and compatibility with your riding gear and fit preferences before purchase.
Features:
- Size: US 8 / EU 42
- Model: SMX-S
- Color: Black
- Brand: Alpinestars
- Manufacturer: Alpinestars
- Vendor Part Number: 2223517-1100-42
- Upper Material: Durable, flexible microfiber construction
- Impact Protection: Double-injected polyurethane shields protect the shin, ankle, calf, toe, and heel
- Ankle Protection: Reinforced inner panel connects to the heel counter beneath the outer shell
- Toe Slider: Interchangeable bi-injected polyurethane slider with snap-in assembly
- Sole: Alpinestars exclusive compound rubber sole with structured shank reinforcement
- Ventilation: Mesh-covered air vents at the ankle, heel, and forefoot
- Lining: Quick-drying polyamide lining with open-cell foam and contoured high-density padding
- Footbed: Removable anatomical polyurethane foam footbed
- Closure: Inner-side elastic-mounted zipper with extra-wide hook-and-loop flap
- Fit: Ergonomic last for a precise, comfortable fit