Washington Senators Retro Pattern Embroidered Flat-Billed Snapback Cap by American Needle Front Vintage Oversized Embroidered Flat Logo Kelly Green Undervisor & Straight Bill For A Vintage Look 6 Panel Feature & Adjustable Snapback & Sweat Self Button Backstrap Design Closure Allows For A Perfect Fit Every Time Officially Licensed by the MLB Style: Across The Board Baseball Cap by American Needle, Fabric: Cotton Twill & Backstrap: Plastic