Super Comfort ̶ Super Wear. Thin layer of gel between two socks reduces impact to the foot. Exclusive Loc-Top stitch. Good choice for longer wear. Each side of Super Gellows has a uniquely white knitted seamless fabric made of Cool Max which helps wick away moisture. A specially formulated non-silicone polymer is between the sock liners to absorb shock and impact to the foot. Two sizes ̶ Small/Medium and Medium/Large for a better fit. Reversible. Exclusive Loc-Top™ stitch prevents roll down.