The ProFlex 650 Neoprene Compression Arm Sleeve provides comfortable elbow and joint support on and off the worksite. The perforated neoprene stretch fabric compresses the elbow to improve blood flow, aiding in pain relief and joint flexibility. This compression elbow sleeve is a great solution for reducing pain and increasing productivity. This comfortable latex-free arm sleeve is made with a breathable perforated neoprene that does not limit range of motion. Soft spandex mesh in the elbow crease further enhances airflow for all-day wear. The ambidextrous pre-curved design fits naturally on either arm and easily slides on over the elbow for a snug fit. Low-profile, this elbow sleeve easily fits underneath clothing, but also can be worn on top depending on preference. To determine size, measure the circumference around the center of your elbow while the elbow is extended.