Roces Men's Pixel Inline Skates Shell: Glass Fiber Reinforced HQPolypropyleneClosure: Memory Buckle, Velcro PowerStrap, Fast Lacing System B Boot: EES Easy Entry System, PAPProgressive Anatomical PaddingFootbed: RAF - Roces AnatomicalFootbed Frame: LiteDesign Extruded AluminumWheels: Roces 80mm 82ABearing: ABEC 5Spacers: Aluminum