Compression sleeves for men and women are designed to keep the blood circulation moving through the arm or leg. This reduces swelling and keeps the limb elevated and more supported while walking, running, or playing sports. Compression arm sleeves for men and women can be worn to support blood flow in the legs, as well as the arms; however, it is important that they are worn properly and that they are not too tight. Wearing a compression sleeve improperly can create painful pressure on the muscles of the arm or may restrict blood flow to the arm and decrease blood supply to the vital organs. Compression sleeves are designed to be loose fitting, and should be comfortably worn so that they do not restrict movement, but should always be worn when possible.