RoadRunners deliver a premium replacement insole that actually stores and releases impact energy, By combining Tuli"s unique waffle design and a specially formulated polyureathane and Poron material, we created RoadRunners, an insole that can actually improve physical performance while the build-in arch support stabilizer reduces fatitue and protects your feet and body from shock, Use: Premium Replacement Insoles, Size: Ladies 5-7/Mens3-5, Dimensions:, Length: 14"", Width: 5 1/4"", Height: 1 1/2"" SKU: MEDD033