Shock Doctor 838 Ultra Back Support Best for moderate to major instabilities and pain, support for ligament sprains, muscle strains and unstable joints allowing for use as necessary for recovery Easy-to-wrap Velcro strap closure Adjustable overlapping Velcro compression/support straps TPR molded stability supports and integrated stability inserts support lower back Terry-lined lumbar pad and Lycra binding for comfort and long lasting wear No-slip silicone gripper pattern reduces unwanted support movement Vented stretch-mesh provides maximum moisture wicking breathable compression LEVEL 3: Maximum Protection