A bodysuit is a one-piece garment that covers the torso and legs. It is similar to a unitard, which is a one-piece garment that covers the torso, arms, and legs. Unitards are typically worn by dancers, gymnasts, and athletes for practice and performances. Bodysuits are also popular in fashion, often made of stretchy material and designed to be form-fitting. They are often worn as lingerie or as a top with skirts or pants.