Alpinestars Tech 3 Boots — EU 39, US 6, Over‑Calf, Black

Tech 3 boots deliver off-road protection and flexible performance through advanced engineering and durable compounds.

• Upper construction uses innovative, lightweight microfiber for flexibility and abrasion resistance.
• Light microfiber on front and rear bellows provides added comfort in high-flex areas.
• Reinforced synthetic toe box offers high abrasion protection.
• Extended polyurethane synthetic gaiter helps seal out excessive water and dirt entry.
• Contoured TPU calf protector plate, higher medial protector, outer lateral ankle and heel counter provide impact support and resistance.
• Rear TPR gaiter patch on top of the TPU calf protector improves protection and comfort during rear flex.
• Injected TPU shin plate connects with the medial protector; hook-and-loop upper closure plus a TPR flap allow broad fit adjustment.
• Higher medial TPU with technical texture enhances grip; a bio-mechanical medial blade system supports controlled front-to-rear flex.
• Ergonomic TPU triple-buckle straps wrap harmoniously around the front flex without compromising movement.
• Triple polymer buckle closure features a ratchet with memory, quick release/locking and a self-aligning design; all buckles are replaceable.
• One-piece injected TPU dual-compound foot shell is reinforced by a metal shank and co-injected toe reinforcement for durable structural support.
• Soft foams around the ankles and collar provide comfort and shock absorption, while a replaceable EVA footbed with textile lining improves hygiene and comfort.
• High-grip rubber compound outsole is replaceable to extend service life.
• Material composition and lining deliver a balance of protection, flexibility and comfort.