Get Georgia Boot® AMP™ Insoles and be comfortable in your boots. These boot insoles have a layer of memory foam that forms to the shape of your foot for custom comfort. The memory foam extends the length of the insoles so it cushions your entire foot. Under the memory foam, the Georgia Boot AMP insoles have a polyurethane layer for maximum cushioning as you stand or step. The heel cups provide comfort and support to your heel area. On the underside of the comfortable insoles are airflow channels that push air to your feet as you walk, helping to cool your feet. Get these comfortable boot insoles from Georgia Boot and get going! This insole should be compatible with most shoes and boots. - Heel cup provides support and comfort - Memory foam adjusts for customized cushioning for the entire foot - Polyurethane layer for maximum cushioning - Airflow channels provide cool circulation - Replaces style G9991 - X Large fits U.S. Men's sizes 11 - 12½ - Medium fits U.S. Men's sizes 6 - 8½ - Large fits U.S. Men's sizes 9 - 10½ - 2X Large fits U.S. Men's sizes 13 - 14½