These Alpinestars SMX-S Motorcycle Boots offer comfort and fit with a durable microfiber upper. They incorporate advanced protective features both inside and out, an ergonomic forefoot shape, and a breathable lining. The exclusive Alpinestars rubber compound sole ensures optimal support and performance. Key features include an ergonomically optimized, race-derived TPU shin plate for impact and abrasion resistance, injected TPR side ankle support for protection and stability, and dual-density TPU ankle protectors. The interior lining is breathable with a non-slip suede heel, and the bi-injected TPU slider is interchangeable via a screw-less system. A TPU selector area with technical embossing provides protection and grip. The opening and closing system features a medial zip on an elasticated gusset with ample Velcro for a secure fit, designed for easy entry and exit. Internal toe protection is laminated under the upper for durability and enhanced feel. The removable, anatomically designed dual-density insole with EVA and Lycra offers comfort and support. The outsole is an exclusive Alpinestars rubber compound for sensitivity, grip, water-dishipersion, and durability. These boots are CE certified to EN 13634:2010.