Increased lateral support for faster skating and enhanced, form-fit stability while training; Higher cuff for added balance and secure foot hold; 45deg aluminum cuff buckle, strap and speed lace closure system; High-comfort, breathable liner with additional padding in tongue/ankle; Superior 290mm/11.4" frame with a lower-profile design for increased speed and maneuverability; 110mm/85A wheels andTwincam ILQ-9 Classic Plus bearings reduce wear and maximize speed