The SK brings cutting-edge technology and unparalleled performance to the racing world. The Active Skating Cuff (ASC) rotates 9º outwards when flexed forward. This design allows the foot to rotate around the X-axis as the leg moves forward, thereby gaining extra speed with improved edge control. The integrated "Posifit" system, redesigned to work independently from the lacing system, cradles the heel securely and comfortably for a customized fit. The Power Strap provides increased support around the ankle and lower leg. Features: # Two-component plastic cuff # Plastic heel counter # Power strap closure # Internal speed lacing # Posifit heel retention # Anatomic racing footbed Sole & Binding: # NNN Pebax racing sole # NNN R3 Skate binding - alpinasports.com