The Mission Inhaler DS4 Roller Hockey Skates feature Mission's exciting new Heel Color Chip that allows players to quickly and easily customize their skates with seven different color options. These DS4 Skates also showcase Mission's S.I.C.K. Ventilated Quarter Package that helps hot air escape out of the sides of the boot, making way for cool air to flow in through the toe cap. The actual quarter package construction utilizes a comfortable and supportive Woven Nylon material, which also features strategic wear patches in high-wear areas for added durability. For upgraded grip and speed, the Mission DS4's have Hi-Lo™ Static 76A Wheels that are made right here in the USA by elite wheel-manufacturer, Revision Hockey. The Hi-Lo™ Statics contain Hi-Lo™ Abec 9 Bearings for superior speed and roll. These wheels sit in the popular one-piece, extruded aluminum Hi-Lo™ Vanguard Frame for a natural and balanced feel with explosive power.