There are different types, styles, designs and variants of one-piece bathing suits such as monokinis, string bodies, sling bikinis, and halter-necks. Most of them are modifications of the two-piece Bikini bathing suit that came out in the 1940s. New styles of one-piece bathing suits are still growing in popularity.

Possibly the most common form of one-piece bathing suit is the tank suit. The term