The 3 Feet Mid Arch is one of the easiest solutions to improving the comfort and performance of your ski boots. The Mid Arch is designed to best fit a middle sized arch to support your foot. Gel Foam is added to the sole to improve cushioning, and an aluminum film is added for insulation. Having an aftermarket footbed will improve your balance, keep your feet warmer, and give you more control over your skis. Best Fits a Medium Sized Arch, Improve Your Balance, Improve the Control Over your Skis, Keep Your Feet Warmer, Gel Foam Cushion, Aluminum Film for Insulation, Model Year: 2021, Product ID: 358778, Model Number: 32950260, GTIN: 3661267029790