Young Blonde Girl Strips Her White Underwear

As skirts became fuller from the 1830s, women wore a profusion of petticoats to achieve a fashionable bell shape. By the 1850s, stiffened crinolines and later hoop skirts allowed ever wider skirts to be worn. The bustle, a frame or pad worn over the buttocks to enhance their shape, had been used off and on by women for two centuries, but reached the height of its popularity in the later 1880s, and went out of fashion for good in the 1890s. Women dressed in crinolines generally wore drawers under them for modesty and warmth.
Another common undergarment of the late-19th century for men, women and children was the union suit. Invented in Utica, New York, and patented in 1868, this was a one-piece front-buttoning garment usually made of knitted material with sleeves extending to the wrists and legs down to the ankles. It had a buttoned flap (known colloquially as the "access hatch", "drop seat" or "fireman's flap") in the back to ease visits to the toilet. The union suit was the precursor of long johns, a two-piece garment consisting of a long-sleeved top and long pants possibly named after American boxer John L. Sullivan who wore a similar garment in the ring.
The jockstrap was invented in 1874 by C.F. Bennett of a Chicago sporting goods company, Sharp & Smith, to provide comfort and support for bicycle jockeys riding the cobblestone streets of Boston, Massachusetts. In 1897 Bennett's newly formed Bike Web Company patented and began mass-producing the Bike Jockey Strap.