Thermal Vent Shoulder Wrap provides protection, heat therapy and support for the shoulder. Keeps shoulder warm and flexible while playing sports. Not to be used for dislocations or bracing. Bilateral design fits right or left shoulder. Engineered with MVT Micro Ventilated Thermal Technology. Thermal Vent Supports have a soft thermal lining that captures and retains your natural body heat to help relieve pain. The microventilated, breathable membrane is comfortable against the skin and provides a free flow of air which allows the skin to breath. With unsurpassed quality, these supports provide gentle compression and warmth to help reduce swelling and associated pain as well as promote recovery.