Alpinestars Tech 7 Mens Black Motocross Boots - 5 Ergonomic, aluminum buckle system offers secure and highly personalized closure Innovative TPU lateral ankle protection provides biomechanical link between the middle lateral and the bottom lateral of the boot Instep and Achilles accordion flex zones are constructed for superior control and support TPU lower shell is reinforced with a metal shank and includes toe reinforcement for impact and abrasion resistance Extended microfiber gaiter helps seal out excessive water and dirt entry