Swimsuit season is here and isn't going anywhere anytime soon. Still need a bikini or one-piece for your next day by the water? Instead of looking to today's celebrities for swimwear inspiration, we're looking to the stars whose style has stood the test of time. Old Hollywood icons made a day in the sun look casually chic—what more could you want? Take note, people.
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1
1935
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Three models wearing two-piece swimsuits.
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2
1940
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American actress Betty Grable wearing a yellow bikini in a studio portrait.
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3
1941
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Actress Rita Hayworth taking a bite out of a hamburger as she sunbathes in a white two-piece bathing suit.
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4
1941
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German Empire Models wearing red bikinis with silver swatch and colorful embroidered bast shoes, 1941.
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5
1943
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Norma Jeane Baker, future film star Marilyn Monroe , tries her hand at sand skiing.
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6
1944
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Actress Ava Gardner lounges on the beach in a spotted bikini.
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7
1945
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American actress Evelyn Keyes wearing a black bikini top and black shorts as she reclines on a red-and-white striped towel by the edge of a swimming pool.
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8
1945
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American actress Virginia Mayo wearing a green-and-white striped bikini.
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9
1945
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A woman standing on the beach holding a branch of a palm tree, Florida.
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10
1946
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This bathing suit was deemed the new 'Bikini' by designer Louis Reard. He couldn't find a model for the suit, so he used 19-year-old Micheline Bernardini, a nude dancer from the Casino de Paris.
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11
1947
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A model on a sandy studio set.
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12
1948
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A woman standing in a floral bikini with a surfboard in Los Angeles.
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13
1949
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A fashion model sits on the bonnet of a Standard Vanguard motor.
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14
1949
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A woman wearing a two-piece floral bikini holding matching hat, Los Angeles, California.
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15
1950
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Marilyn Monroe frolicking on the beach near her Hollywood home during a break from filming.
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16
1950
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American actress Janet Blair wearing a green bikini while sitting on a sun lounger.
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17
1950
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American actress Ann Sheridan drinks a glass of Royal Crown Cola on the beach.
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18
1950
American actress June Haver sitting in a bamboo enclosure.
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19
1950
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American pin-up Bettie Page poses for a photo shoot.
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20
1950
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Young girl kneeling on beach wearing a pink bikini with a flowered top, Los Angeles, California, 1950.
Emma Baty is the Senior Entertainment Editor at Cosmopolitan, where she shapes TV, movie and music coverage, writes celebrity profiles, edits stories across both print and digital, and generally obsesses over all things pop culture. Prior to this role, she worked as Cosmopolitan.com’s News Writer, writing celebrity news stories daily and covering live events like the Oscars. Originally from Grand Haven, Michigan, she currently lives in Brooklyn.