Saucony Women's Kinvara 4 Running Shoe 100% Synthetic Imported Synthetic sole Flex Film welded upper HydraMAX moisture-wicking collar lining Impact-absorbing PowerGrid technology centers the foot High-abrasion EVA+ lightweight midsole XT-900 carbon rubber traction outsole Keep your transitions smooth and your feet secure with the award-winning Kinvara 4 running shoe from Saucony.