The Achiever Economy Hinged Knee Support is a knee orthosis designed for use by individuals with lower extremity disabilities. Made of Neoprene for warmth and compression, this brace has a patella opening and a nylon outer shell and is lined with nylon for ease in application and removal and to reduce skin contact and irritation. Two single-pivot hinges enclosed in Neoprene provide mild medial and lateral stability. SIZES: Extra small, small, medium, large, extra large, and extra extra large. COLOR: Black.