Tank suit is a term that refers to a one-piece swimsuit that typically features thicker shoulder straps than most other swimsuit styles. This style of swimsuit has been popular since the 1920s and has undergone many changes over the years to suit changing tastes and trends. Some common synonyms for tank suit include maillot, one-piece swimsuit, and swimming costume. Other variations of the style include high-neck tank suits, halter neck tank suits, and racerback tank suits. Tank suits come in a range of fabrics, including spandex, nylon, and polyester, and are available in a variety of colors, patterns, and designs.