The term 'bikini piece' refers to a type of clothing item that is typically worn by women. The most common type of bikini piece is the bra, which is a three-letter word. A bra is a form-fitting undergarment designed to support and cover the breasts. It is usually made of a combination of fabrics such as cotton, spandex, and nylon. The straps of a bra are adjustable and can be worn in a variety of ways, including over the shoulder or around the back. Bras come in a variety of styles, colors, and sizes, and are often decorated with lace, ribbons, or other embellishments.