Baseball players usually wear long, calf or knee-high socks to play ball. Players can use socks to keep their feet nice and dry and add an extra layer of calf protection. There aren't usually any requirements for the kinds of socks players wear, but they are typically long and match the team uniform in color. It's been said that players began showing their socks to show off their calves and impress the ladies in the crowd. Though they aren't required, socks (white, red, or any color) are important enough to be incorporated in the name of two different MLB teams.