The baseball cap started as a (not so) practical piece of sports gear when, in 1849, the New York Knickerbockers rocked the first known version — which was, itchily, made from straw. In the 1860s, out came a style worn by the Brooklyn Excelsiors featuring a longer brim, to keep the sun out of their eyes, and a deeper, button-topped crown — two design details pivotal in the modern-day cap. Over time, it became a key part of American casual style. By the 1980s, the cap was a symbol of street culture, especially in hip-hop, with brands like New Era leading the charge, but also courtesy of Bruce Springsteen who tucked one in the pocket of a pair of faded Levi’s 501s on his Born In The U.S.A record cover, anchoring them as a kind of working class uniform.