Arm sleeves are specialized garments worn around the arms, typically extending from the upper arm to the wrist. They are designed to provide a variety of benefits, such as protection from the sun, compression for improved circulation, or support for muscles and joints during physical activity. Arm sleeves are often made from stretchy, breathable fabrics like spandex, polyester, or nylon, and they may feature moisture-wicking technology to keep the wearer dry. Some arm sleeves are designed with added features like UV protection, reflective elements for visibility, or ergonomic stitching for a snug fit.