Quarter: Durable, stiff quarter that provides structure and stability for a powerful stride Outsole: Stiff, lightweight construction maximizes energy transfer Chassis: Powered by Labeda, lightweight stiff chassis and 4x80MM wheel configuration to put you in the fastest skating position Labeda Gripper Wheels: The first wheel to bring flex technology to the forefront of roller hockey. Its smaller core design allows the outer urethane to flex, maximizing grip with its larger footprint