Soft Support for the Arch. Same long-lasting quality insole material as the slip-in insole but with an added soft arch cushion for extra comfort. Full length cushion for heel to toe comfort. Reduces foot discomfort and arch compression caused by constant pounding. Soft arch cushion absorbs impact, shock and side-to-side friction. "Closed cell" system helps reduce friction and side-to-side forces which cause blistering of the skin. Helps prevent blisters and calluses. "Closed cell" system won"t flatten out Helps cushion and absorb shock. Helps maximize energy return. Helps protect the heel, arch, and mid foot area. Gives greater foot support and stability. Helps keep foot from rolling inward. Spenco model # 44-040