The inner sleeve of the Mueller HG80 Knee Brace features a formfitting hourglass design. Exclusive moisture wicking HydraCinn fabric is latex free and neoprene free. Permanently bonded antimicrobial barrier provides protection against odor causing bacteria, fungus, and other microorganisms. Anti-slip inner grip strips help prevent brace migration. Flexible steel springs support both sides of knee, yet allow leg flexion and extension. Upper strapping system and tibial containment system provide superior support. Extremely soft to the touch and lightweight with seamless sewing for comfort. Free nylon mesh laundry bag shields clothing from hook-and-loop straps in gym bag or washing machine. Sold individually.