A catsuit is a one-piece form-fitting garment that covers the torso and the legs, and frequently the arms. They are usually made from stretchable material, such as lycra, chiffon, spandex (after 1959), latex, or velour, but may use less elastic materials, such as leather or PVC. Catsuits frequently close using a zipper at the front or back, or are pulled on over the neck opening. Catsuits are most commonly worn by women, but are also worn by men. A catsuit is regarded as outerwear, but not normally street wear.