The first baseball caps were worn by the New York team, the knickerbockers, around 1840, and they were made of straw . Today baseball caps are made of different fabrics and worn by people from all walks of life. There is on age limit to the wearing of a baseball cap. Everyone from small children to seniors has adopted the cap. The caps are comfortable to wear and adjustable for a good fit, and they are often made of fabric that makes them cool to wear on a hot day. Caps keep the sun out of your face and protect you from the rain, but for many people, they arew also a fashion statement.