FlexLock System: Adjustable boot flex LockOut of the ankle movement Force Reduction LockOut ankle movement gives: Up to 37% reduction of ankle forces Up to 35% reduction of forces to the knee Reductions compared to the market leader/most high-end boots Fit: Outstanding first-class fit even for wide feet Ankles: 3D-shaped impact foam over ankles Heel grip ankle design Toe-Box: Low-profile, gear shift friendly shape Sole: DualZone hardness Extended foot peg riding zone for arch and on the blade riding style Steel shank reinforced and CE certified Cuff: SlideLock system Auto-locking, one-way sliding closure Bike Grip: Flat and grippy bike side of the boots for great bike feel Buckles: Forged Aluminum Over-locking function Inner Liner: Breathable mesh 3D liner with anti-slip reinforcement for zero heel lift CE tested and certified as: prEN 13634: 2017 Size: US 7-13, UK 6-12, EU 40.5-48, CM 25,5 -31