Self-heating Magnetic Back Waist Deluxe Double Pull Magnetic Lumbar/Lower Back Support Belt Breathable Brace Made from first choice breathable materials Get ride of your lower back pain and trim your waist at the same time with this high quality Magnetic infrared self heating belt Made from breathable materials enhanced with double pull strap to ensure a maximum of comfort and efficiency One size fits most , this 44" long belt can go from 36"( waist size ) to 44" Its black color and modern design made it the perfect unisex brace that can be worn by men and women all ages !!!