The Arch 2000™ insole provides stability, support, and full-length/lightweight cushioning. Dual layer cushioning provides the maximum amount of cushioning possible. The inner cushion is a layer or PORON® Cellular Urethane, which provides superior shock absorption for the entire foot. PORON® is lightweight and durable; it does not harden like PVC foam, does not break down like Latex foam, or take a compression set like EVA foam. The anatomically shaped arch support and extra deep heel cup combine to deliver maximum support and stability. The Biostatic™ top cover helps fight against unwanted odors. By controlling the amount the foot slides across the insole's surface, the anti-friction top cover helps prevent blisters and keeps feet cooler and drier.