A baseball cap is a type of hat that is worn when playing baseball or just for fashion. It is made of soft material and has a curved brim that sticks out in front to help shade the eyes from the sun. The cap fits snugly on the head with a band that goes around it, and it often has a snap or buckle at the back to adjust the size. Many baseball caps have logos or designs printed on the front or sides, and some people collect them for fun. Overall, baseball caps are a popular and practical accessory that can be worn by people of all ages.