The upper is constructed from a PU coated leather on lower medial panel, both with heat press texture for superior grip. Front and rear bellow made with lightweight microfiber. Extended PU coated leather gaiter helps seal out excessive water and dirt entry; rear gaiter includes rubber insert for flexibility and comfort. TPU shin plate and calf plate. Bio-mechanical lateral flex-blade system. Closure system incorporates a ratchet with memory and a quick release/locking system with self-aligning design. Drystar® membrane layer between upper and lining. Co-injected polypropylene insole with steel shank. Alpinestars exclusive vulcanized rubber plus injected PU midsole. Replaceable anatomical EVA footbed. CE-certified.
