All new for 2018, the Fox 180 Boot redefines the boundaries of performance and value. Completely redesigned and built off our championship-proven Instinct, the 180 Boot provides a precise fit around the ankle and toe box giving the rider maximum support and comfort. The 180 Boot introduces our exclusive ActiveLock closure system. This patent pending calf closure flexes with the rider's natural biomechanics, for unrestricted movement on the bike. It's combined with two lower Instinct buckles to lock-in your fit, providing the perfect balance of support and rider movement. Putting on the boot is a breeze. First set the two lower Instinct buckles using the set-it-and-forget-it memory settings. Next, pull the ActiveLock closure with the silicone strap. Done. The silicone strap has four size settings for a precise fit. A floating-cuff system in the heel allows the boot to move naturally for improved agility on the bike while locking out to prevent hyperextension. This means the boot fits