A baseball cap is a type of soft cap with a rounded crown and a stiff peak projecting in front.
The front of the cap typically contains a design or a logo of sports team (namely a baseball team, or names of relevant companies, when used as a commercial marketing technique). The back of the cap may be "fitted" to the wearer's head size or it may be , have a plastic prong-in-a-hole, , zipper, or a tri-glide slide so that it can be quickly adjusted to fit different wearers. The baseball cap is a part of the traditional baseball uniform worn by players, with the brim pointing forward to shield the eyes from the sun. Since the 1980s varieties of the cap have become a common fashion accessory, particularly in the United States.