Polyester and Spandex .Imported .Polyester lining .Material:Our premium socks are made from an optimum blend polyester and spandex.You can wear them for hours on end without the slightest discomfort! .Skid Resistant : Our non skid slipper socks feature tread grippers on the bottom for safety when walking on smooth surfaces in the hospital or at home. These grip socks will help with keeping your balance and lower the risk of falling. .Size: Fit Men shoe size 7-12/Women shoe size 8-11 .Perfect companion socks for hospital and home.The grips on the bottom provide people fall prevention safety and everyone wears them for their comfort, warmth and security.