Tech 5 Boots — boot from ALPINESTARS. Ships direct from the manufacturer (online-only). Upper constructed from innovative, abrasion-resistant microfiber with synthetic polymer on toe box Main microfiber material offers high levels of water-resistance, durability and improved weight-saving Material ensures consistent fit for long term usage and is easy to maintain and clean Redesigned instep and Achilles accordion flex zones made from lightweight microfiber for superior comfort, control and support Contoured advanced polymer core structure envelopes upper boot for structural integrity and abrasion resistance while allowing excellent levels of controlled flex Anatomically profiled, high modulus polymer shin plate for superior impact and abrasion resistance Contoured shin plate allows for greater range of fitment and features a Velcro® adjustable panel for a personalized and secure closure Medial-facing biomechanical pivot system links lower and upper parts of the boot and gives front and rear flexibility and structural support