Alpinestars SMX-S Boots — EU 40, US 6.5, Mid‑Calf, Black

Engineered for performance and everyday riding comfort, these boots combine advanced protective features with a precise ergonomic fit.

• Durable microfiber upper designed for comfort, flexibility and an ergonomic forefoot shaping.
• Double-injected polyurethane (PU) shields protect the shin, ankle, calf, toe and heel while minimizing abrasion.
• Hidden inner protection panel connected to the heel counter runs beneath the outer shell up the outer ankle for added impact management.
• Quick-drying polyamide lining laminated with open-cell foam and high-density contoured padding absorbs shocks to the foot area.
• Exclusive rubber compound sole with structured shank reinforcement provides targeted arch support and optimized levels of support and performance.
• Interchangeable bi-injected PU toe slider with snap-in assembly for easy replacement.
• Innovative air vents at the ankle, heel and forefoot are covered with a purpose-designed mesh to maximize airflow and rider comfort.
• Large throat-profile instep and Achilles flex bellows deliver superior flex and a comfortable fit.
• MTP mesh liner and anatomical, removable PU foam footbed keep the foot cool and cushioned.
• Inner (medial) side entry system features an elastic-mounted zipper with an extra-wide Velcro® flap for a precise fit and generous opening for easy on/off.
• Highly ergonomic last for an ultra-precise fit.
• Composition: 59% microfiber, 29% TPU, 8% thermoplastic rubber, 3% polyester, 1% nylon. Inner/lining: 89.09% textile, 7.42% microfiber PU, 3.49% synthetic PU.

Designed to balance protection, comfort and ventilation, these boots are ideal for riders seeking a technical, reliable option for spirited road use.