Skechers Ace Undefeated Women's Running Shoes Synthetic Fabric sole Be the champion of sporty versatile style in the SKECHERS Ace - Undefeated shoe. This lace up running and training athletic sneaker with stitching and overlay accents features a padded collar and tongue, soft fabric shoe lining, cushioned comfort insole, lightweight shock absorbing midsole, contrast colored dual density heel panel in midsole for stability, FlexSole design for added comfort, and a flexible rubber high traction outsole.