Spenco® Walker/Runner Insoles are made of closed cell neoprene. A contoured layer of polyurethane is bonded to the neoprene to help cradle the heel and support the arch. An extra heel strike cushion helps protect the back of the foot during a variety of activities. This unique cushioning system is the best combination of shock absorption and energy return. Helps reduce friction while improving overall foot comfort.  $19.99/pr.