Runners and walkers with high to medium foot arches will be amazed by the comfort and support these removable inserts provide. Targeted cushioning cradles feet to improve athletic performance and extend shoe life. SpenCore™ strike pads and cushions in the heels and forefeet soak up shock while the ergonomic shape supports your arches. Unconditional one-year guarantee from the manufacturer. Imported. Sizes: 6/7, 8/9, 10/11, 12/13.