Coming in the wake of the hugely successful and iconic Tech 10 and Tech 7 the new Tech 5 is an advanced multi-material, multi-panel construction boot that further strengthens Alpinestars line-up of class-leading motocross and off-road boots. Incorporating an innovative microfiber chassis, which is extremely durable and lightweight, a medial biomechanical pivot system for excellent levels of support and stability and extended accordion flex zones, the Tech 5 affords performance fit and high levels of comfort and durability. Innovative buckle closure system incorporates polymer and fiberglass buckle arms and high-impact aluminum bridge closures for durability and weight-saving. Buckle system features memory and a quick release/locking system with self-aligning design for easy, precise closure and improved riding performance and security. All buckles are easily replaceable. The TPU buckle straps are ergonomically profiled to promote high levels of front flexion. Innovative one-piece TPU injected dual compound foot shell with excellent impact and abrasion resistance and unmatched levels of safety. This shell is reinforced by a metal shank inside and toe reinforcement co-injected in harder compound. Exclusive dual compound sole is seamlessly integrated to the multi-density foot base structure with built-in support. The sole offers superior durability, grip and feel while riding. The sole is replaceable. The TPU heel patch connected with shell and lateral/medial TPU parts, offers protection and support. Soft poly-foam surrounded the ankles and collar offer shock absorbing performance, plus full interior textile lining for comfort. Replaceable anatomic EVA footbed with textile lining on top.