Mariner's cap

[3] This hat was worn daily by Hasidic Jewish boys in Britain, Germany, Russia, Poland, and America from the early Victorian era until the mid 20th century, but in the present day it is generally restricted to Shabbat and other formal occasions.

[4] Dark blue and army green variants with a red star badge later became part of the uniform for Great Patriotic War era political commissars along with a black leather reefer jacket.

[9] The traditional costume for many Greek coastal villagers, comprising the cap, roll neck sweater, loose trousers, and tall boots featured in the film adaptation of The Guns of Navarone, as the disguise for the British agents.

[10] Black or navy blue variants with a white crown known as Tellermützen were also commonly worn by university students in Germany, Denmark, and Sweden from the turn of the century until the present day.

Caps with decorative gold braid, either in the standard navy blue or with a white top, were favored by the skippers of sailing yachts, motor boats, and other small pleasure craft.

[11][12] From the 1930s until the 1970s a waterproof version, known as a mechanic's cap, was worn with a blue boiler suit (coveralls) as part of the uniform for truckers, gas station employees and breakdown men.

[16] At the same time, a knitted grey or black version, resembling a wool Rasta hat with a leather peak, gained popularity among some expatriate Jamaican Rastafarians in Britain and the US to accommodate their dreadlocks.

[17][18] From the mid to late 1960s, the Greek Fisherman's cap became a desirable counterculture accessory for both sexes, due to its use by The Beatles during their US tour, and by folk musicians such as Bob Dylan, Woody Guthrie, and Donovan.