McDavid Ligament Knee Support contains advanced brace features - superior padded buttress, two medial and two lateral stays. Two Velcro straps and four elastic crossing straps lend additional support to ligaments. Long 3/16" thick neoprene sleeve with nylon facing on both sides. New wide back without center seam for increased mobility and ease of motion. Provides firm compression, soft tissue support. Retains warmth and helps to relieve pain and promote healing. Features: ** Spring steel stays for support ** Provides thermal therapy and firm compression ** Wide back without center seam for increased mobility and ease of motion ** Four adjustable elastic crossing straps provide additional support to the ligaments ** Fits right or left knee Caution: Do not apply over open wounds or if you have susceptibility to dermatitis Sizing (measure around knee): Small: 12 - 14 inches Medium: 14 - 15 inches Large: 15 - 17 inches X-Large: 17 - 20 inches XX-Large: 20 - 22 inches McDavid Product Number #425