Fit for multiple occasions, such as gym, sports, body- building, games and so on. neoprene thermal it is snug to wear, effectively enhances perspiring and burns more calories The arm wraps stimulate sweat release, and help to reshape your upper arm. It can also help protect arm musles while you are doing physical exercises. Special 3-layer creats strong sauna effect, accelerating and sweating, and keeps the outer layer dry in the same for time. This arm trimmer is contoured to fit around your arm comfortably and is naturally flexible to allow for a full of motions.