Shower cap

A shower cap is a cap worn while showering or bathing, to protect hair from becoming wet.

Many are produced by joining two layers of fabric together in order to make the shower cap not only waterproof but aesthetic also. However, simpler ones are purely made from one layer of a waterproof material, often plastic. They all contain an elastic band to contain the user's hair.

Though mostly used in a purely practical way, the caps have sometimes also been worn as fashion accessories (particularly among African-American men and boys). This second use was especially popular from the 1970s through the early 1990s.