STRAUSS Adjustable Knee Support, Ankle Support, Free Size (Black, Large) Material: Other In-box Contents: 1 Made from durable neoprene for heat retention and maximum compression Anatomical design for compression and comfort suitable to resist minor injuries as knee twists and sprains Provides strength and care for the knee joint throughout any random or routine physical activity Retains body heat to warm muscles and increases blood circulation, velcro closure for snug and comfy fit Provides strength and care for the ankle throughout any random or routine physical activity