IMPACTO® Shoe Inserts. Open-cell structure engineered for greater resiliency, breathability and reducing heat build up. Top layer provides constant cushioning and even distribution of weight to protect pressure points. Molded style insoles have heel and arch support, ideal for safety footwear, boots and running shoes. The airsol insoles provide superior impact and shock absorption. Inherently antimicrobial foam helps to reduce foot odor. Fully washable. 100% PVC-Free for a clean environment