Years of proven use and high quality are synonymous with SPENCO. Our slip-in insoles provide long-lasting heel to toe comfort. Washable, trim to fit with scissors. The lightest weight SPENCO Footcare Product fits all type of shoes. Absorbs impact, shock and side-to-side friction. Helps cushion and absorb shock better. Helps maximize energy return. 1/8"" thick. ""Closed cell"" system helps reduce friction and side-to-side forces which cause blistering of the skin.