If you have been lucky enough to never have experienced a muscle injury, then these are the Compression Shorts for you. Wearing these Compression Shorts continuously will help prevent hamstring, quadriceps and groin injuries. Designed with our unique fabric to reduce muscle vibration. This allows for more muscular efficiency = power with less pain. (NOT TO BE WORN WHILE SLEEPING), this single layer SWEAT IT OUT® with COOL COMPRESSION® technology fabric offers stretch and recovery of 200% in all directions (360°)! Help avoid unnecessary injuries!! Care Instructions: NO BLEACH! Machine wash cold, tumble dry warm. DO NOT Iron.