Vintage bathing suit man Black and White Stock Photos & Images - Alamy
The History of Men's Swimwear | Simply Swim UK
KelownaMuseums - During the 1940s, a change in fabric manufacturing revolutionized bathing suits by giving them more elasticity. Men's swimsuits lost their tops, leaving behind high-rise briefs that covered the belly button.
Ladies Swimwear Knitting patterns available from Fab40s.co.uk
Men's Swimwear Guide - Bathing Suits For Gentlemen
PHOTOS: What Swimsuits Have Looked Like Over the Years