The elbow / forearm Compression Sleeve may help relieve elbow strain, elbow pain and tendinitis. This sleeve will help keep down swelling in the elbow area. Designed with our unique fabric to reduce muscle vibration. This allows for more muscular efficiency = power with less pain. SWEAT IT OUT® with COOL COMPRESSION® technology fabric offers stretch and recovery of 200% in all directions (360°). Care Instructions: NO BLEACH! Machine wash cold, tumble dry warm. DO NOT Iron. NOT TO BE WORN WHILE SLEEPING.