Spenco PolySorb Total Support Insoles provide total support with targeted cushioning. Best for medium-to-high arched feet. Offers lasting support and shock absorption that improves athletic performance and prolongs the life of shoes. Ideal for running, walking, training and sports. 3-Pod cushioning system helps prevent overpronation. Cushioned forefoot crash pad. Deep heel cup and semi-rigid arch support. Low-friction top cloth with Silpure Helps prevent blisters while controlling odor.