Transit Tees has designed a Chicago flag hat that's classic enough for tourists and cool enough for locals. Enjoy an iconic Chicago summer day with our new favorite hat, with a breathable, netted back keeping you cool. These trucker hats are a new and improved version of a long-time customer favorite. Make of hat is 65% Polyester/35% Cotton. Designed and produced by Transit Tees in our Chicago's Wicker Park creative studio.