90%Nylon,10%Spandex.Comfortable fit without aggressive hooks or wires.Arms slim down. Arm trimmer with bump knitting suitable for blood circulation. The section pressure, is comfortable and not tight, for each position, the effect is good. Slim your back and arm cellulite, Lock the proud flesh inside the upper arm and massage to remove the accumulation of fat. Under the combination of natural motion, this special stereoscopic massage can cause stress and prevent hunchback. It is breathable fabric heat-treated and protected from unpleasant odors. Choose your size only with the help of our size chart among the images.