The Aircast Replacement Sock Liner is intended to help reduce skin irritation while wearing an foot brace or walking boot. It's compatible with the following Aircast Walker Braces / Walking Boots: XP, FP and SP models. This full length, stretch tube sock measures 22 inches long. Available in white, this closed-toe sock is made with a cotton/polyester/lycra spandex blend. One size fits all. The information below is per-pack only With use, this sock helps reduce skin irritation while wearing an foot brace or boot Compatible with the following Aircast Walker Braces / Walking Boots: XP, FP and SP models Full length, stretch tube sock that measures 22 inches long This closed-toe sock is made with a cotton/polyester/lycra blend Includes 1 white sock liner; One size fits all ASIN B0BW3JGC4B Size 1 Count (Pack of 2) Material Polyester, Spandex Brand Name AIRCAST Sport Type Walking Unit Count 2.0 Count Item Weight 0.2 Pounds Part Number AC141PA10 Manufacturer DJO Consumer LLC Model Number AC141PA10 Item Dimensions 11 x 1.5 x 4 inches Number of Items 2 Special Features Adjustable Target Use Body Part Foot Age Range Description Adult Specific Uses For Product Blend,Skin