The Pro-Insole by Elite Hockey is designed and engineered to distribute maximum comfort in every stride you make. The channels are designed to carry out your weight consistently and level the support of the skate when turning and striding. The air holes are to assure that the moisture within your skate is managed properly through the exhaust of hot air and the intake of cool air, assuring the moisture level is managed in the best possible way. The arch and heel are contoured for optimal support of your feet guaranteeing unsurpassed comfort and flexibility. The Pro-Insole is also the lightest engineered insole for your skates. Play the game of hockey in extreme comfort with every stride you make!