Features Quarter: New Curv® Quarter with New Vent Shapes and Supple Comfort Edge - Composite upper design that's more comfortable and more responsive, Liner: Grip Liner with Quilted Indy Foam Pads, Outsole: Full Light-Weight Composite, Chassis: HI-LO Kryptonium 76/80mm, Wheel: Revision Flex Soft - Features an A-Symetrical Flex Ring for providing maximum grip and speed, Bearing: HI-LO SwissMission