MLB American Needle Chicago 1931 White Sox Cooperstown 400 Series Navy Snapback Cap Front Vintage Embroidered Raised Logo Kelly Green Undervisor & Straight Bill For A Vintage Look 6 Panel Feature & Adjustable Snapback Black Tape & Sweat Self Button Backstrap Design Closure Allows For A Perfect Fit Every Time Officially Licensed by the MLB Style: Cooperstown 400 Baseball Cap by American Needle, Fabric: Wool, & Backstrap: Plastic