The Spenco PolySorb Cross Trainer has special cushioning in both the heel strike zone and the forefoot area for outstanding performance. These Spenco PolySorb Cross Trainer Green Unisex Insoles have the following features: For aerobics, court sports, running, weight training, racquet sports and walking Helps turn any athletic shoe into a cross training shoe Added heel strike area and forefoot area cushion provides extra cushioning for aerobics, tennis, basketball, weight-lifting, running, walking, jogging and in-line skating Contoured bottom layer of lightweight polymer provides extra shock absorption in the heel and; arch areas Pre-formed heel cup and arch help maintain proper foot position and stabilize the arch SPENCO Footcare Products won't bottom out, a term used to describe the condition when an insole product has lost all or most of its cushioning or shock absorption properties Spenco model # 38-034
