The all new Leatt GPX 5.5 FlexLock boot, a 3-year project with long term development and testing using our Pro athletes from all over the world! The GPX 5.5 boot is a real head-turner when it comes to looks and style, but also offers comfort and protection! Features FlexLock System: Adjustable boot flex, LockOut of the ankle movement Force Reduction: LockOut ankle movement gives up to 37% reduction of ankle forces and up to 35% reduction of forces to the knee Fit: Outstanding first-class fit even for wide feet 3D-shaped impact foam over ankles ankle design with heel grip Toe-Box: Low-profile, gear shift friendly shape Sole: DualZone hardness Extended foot peg zone Steel-reinforced shank Cuff: SlideLock system, auto-locking, one-way sliding closure Grip: Flat and grippy motorcycle side of the boots for great riding feel Buckles: Forged Aluminum, over-locking function Inner Liner: Breathable mesh 3D liner with anti-slip reinforcement for anti-heel-lifting EN 13634:2017