"A one-piece swimsuit most commonly refers to swimwear worn by women and girls when swimming in the sea or in a swimming pool, playing water polo, or for any activity in the sun, such as sun bathing. Today, the one-piece swimsuit is usually a skin-tight garment that covers the torso, except maybe the back or upper chest.
Before the popularity of the two-piece swimsuit, and then the bikini, virtually all women´s swimwear completely covered at least the wearer´s torso, and men also wore similar swimsuits. While the bikini has increasingly found popular acceptance since the 1960s, the one-piece swimsuit has maintained a place on beaches to this day." - (en.wikipedia.org 25.03.2021)
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