High Performance Skates for the fitness enthusiast who wants a little more lateral support for stability while looking to train, exercise or skate faster; Flex and Lateral Support is ideal in the Macroblade structure. The higher cuff provides extra stability to help with balance and hold the foot securely during the stride; Comfortable Athletic Shoe Engineered Mesh Upper has padding in the tongue and ankle areas to cushion the feet. Buckle, powerstrap and lace lock closure secure the feet with added breathability; Twinblade Aluminum 11" Frame is durable and helps keep skaters closer to the ground with its low profile design for enhanced speed, balance and stability; Rollerblade Performance Wheels 90mm/85A wheels blend speed and control perfectly. SG9 bearing spin is superior and helps provide the appropriate speed