Protection The Tech 7 boot is CE certified One-piece dual compound foot shell with co-injected hard toe protector and integrated steel shank is highly resistant to abrasion and impact Upper constructed from microfiber material that is flexible and abrasion resistant. Upper material is reinforced with impact resistant PU panels Calf protector plate injected with high modulus polymer Alpinestars’ blade flex system prevents hyperflexion, hyperextension, and rotational injuries TPU ankle protection system incorporates biomechanical link between the middle and bottom sections of boot TPU shin plate and medial protection constructed from single piece and features dual closure system TPU medial side panel incorporates advanced honeycomb rubber insert Dual compound sole seamlessly integrated into base structure Comfort Boot chassis designed with an ergonomically profiled forefoot and lower toe-box Sole and footpeg inserts are replaceable Wide entry aperture Buckle closure system includes high-impact aluminum bridge closures, with memory settings and a quick release/locking system with self-aligning design Instep and Achilles accordion flex zones Extended microfiber gaiter Internal lining includes anti-slip microfiber suede on heel Foam reinforcement on ankles and collar Dual compound, removable, anatomic footbed includes EVA and Lycra top