Pearl iZUMi Women's SyncroFloat IV Running Shoe 100% Mesh Rubber sole 1:1 360 degree Lacing anatomically conforms to the foot for a tailored fit regardless of foot shape 1:1 Seamless Upper creates an unparalleled fit with a seam-free interior Half-length low-profile syncro Stability Frame SKYDEX heel crash pad NEW Ortholite sockliner for amazing step-in comfort and long-lasting cushioning