One Piece Swimsuit

This character wears a one-piece swimsuit.

A one-piece swimsuit is a usually skin-tight one-piece swimsuit worn by women and girls when swimming in the sea or in a swimming pool, or for any activity in the sun, such as sun bathing. The one-piece swimsuit usually covers a female's torso.

Some women wear a one-piece swimsuit because they consider it to be more modest than a two-piece bikini. Before the popularity of the bikini, virtually all female swimsuits were one piece, and in older days men wore similar swimsuits that covered their whole torso.