Three flexible back supports provide extra support and an adjustable strap allows for just the right amount of compression. Breathable materials suitable for cold and hot climates with a flexible design that fits the body. Retains body heat for continuous heating of the lower back muscle group. Usage: When feeling weakness and pain in the waist area. Mild lower back pain. Muscle strain and ligament sprain. How to use: Wrap the support around your waist and make sure to place three supports on your back. Adjust the support to the desired pressure and close the hook and loop at the front of the support.