Women’s swimwear in the 1940s looked nothing like what you’d see on a beach today. The decade was shaped by World War II, and that conflict touched nearly every part of daily life — including what women wore to swim.
The one-piece suit was the dominant style of the era. These weren’t the sleek, athletic cuts of modern swimwear. Most featured a short attached skirt that draped over the upper thighs, offering more coverage than suits worn today.
Fabrics like cotton, rayon, and Lastex were standard. Lastex was a woven elastic material that gave suits a modest amount of stretch — a practical choice at a time when synthetic fabrics weren’t widely available.
Two-piece suits also appeared during this decade, but they bore little resemblance to the bikini. The bottoms sat high on the waist — often at or above the navel — and the tops were structured with wide straps for support.
Wartime fabric rationing pushed designers to simplify. Decorative frills, ruffles, and excess material were cut from production. Suits became more streamlined out of necessity, not purely by choice.
Even within those limits, women used color and pattern to express style. Polka dots were extremely popular, as were bold stripes and floral prints. Patriotic combinations of red, white, and blue also appeared frequently throughout the war years.
