Crafted in Southern California, every hat is skillfully woven on a hand-operated knitting machine by a single craftsman. The hat is knit in the order of the wool layers as they appear inside a baseball: outer gray, white, and inner gray. The yarn is then softened and the inside of the hat is lined with alpaca wool yarn for extra comfort. Baseball used may be from "Home" or "Away" games. Each beanie comes in a MLB gift box with a story card.