Suits evolved into knee-length tunics worn over bloomers. Modesty was strictly enforced; women often used bathing machines —covered carriages rolled into the water—to enter the sea privately.
Developed in 1946 by Louis Réard, the bikini emerged partly due to wartime fabric rationing. Material Development bathing costume
Women wore voluminous, ankle-length gowns made of wool or linen. These often included weighted hems (using lead) to prevent the fabric from floating and exposing the legs. Suits evolved into knee-length tunics worn over bloomers
The term "swimsuit" was coined in 1915 by Jantzen. Australian swimmer Annette Kellerman famously challenged norms in 1907 by wearing a form-fitting one-piece, which led to her arrest for indecency. bathing costume