The 3 Feet Low Arch is the perfect answer for skiers with low arches, or almost flat feet. This addition to your ski boots will make a huge improvement in your skiing. It is very important to support low arches to give your foot the optimum amount of stability. Foam padding is added for extra cushion, and Aluminum Film will insulate your foot. Supporting your low arch will improve your balance, give you more control over your skis, and keep your feet warmer. Do your skiing a favor and support your low arch. Best Fit a Low Arch or Almost Flat Feet, Improve Balance, Improve Control Over Your Skis, Keep Your Feet Warmer, Aluminum Film Insulation, Foam Padding, GTIN: 3661267029738, Model Number: 32950160, Product ID: 358791, Model Year: 2021