 In 1907 , Australian swimmer and performer Annette Kellerman was arrested on a Boston beach for wearing form @-@ fitting sleeveless one @-@ piece knitted swimming tights that covered her from neck to toe , a costume she adopted from England , although it became accepted swimsuit attire for women in parts of Europe by 1910 . In 1913 , designer Carl Jantzen made the first functional two @-@ piece swimwear . Inspired by the introduction of females into Olympic swimming he designed a close @-@ fitting costume with shorts for the bottom and short sleeves for the top . 
