ADJUSTABLE RELIEF WRAP: Anatomically designed to conform to all body types & adjustable to help keep the gel pack in place. THERAPEUTIC GEL PACK: Stays pliable when frozen for maximum comfort and optimal surface coverage. HOT & COLD THERAPY: Cold helps with pain and inflammation. Heat therapy helps reduce stiffness or chronic discomfort. UNISEX SIZING: For men and women. One size fits most. LOW PROFILE DESIGN: Can be worn below or over clothing. CLASS 1 MEDICAL DEVICE | FDA REGISTERED | HSA/FSA Eligible