In 1919, the Florentine designer Thayaht (né Ernesto Michahelles) conceived what he believed to be “the most innovative, futuristic garment in the history of Italian fashion.” It wasn’t just braggadocio. The multifunctional, all-in-one TuTa, as he called it, would soon find favor with sportsmen (in particular, skydivers—hence the term “jumpsuit”) and high-society mavens alike. Elsa Schiaparelli designed a version during World War II for chic women to wear in bomb shelters. Emilio Pucci later created colorful ones for the ski slopes. Elvis Presley, David Bowie, and Freddie Mercury performed in them in the ’70s; disco divas sported them into the next decade; and shown on nearly every spring runway from Tommy Hilfiger to Lanvin, the jumpsuit still, funnily enough, feels like the most modern thing going.