Keep your head cool while repping your Boston Red Sox with this Flag 9SEVENTY COOLERA Stretch-Snap Hat from New Era.This Boston Red Sox hat features COOLERA technology that wicks away sweat to keep you cool and dry, while MICROERA technology acts as an anti-microbial agent to reduce odor. The structured crown and semi-curved visor provide a modern and comfortable fit, making it perfect for all-day wear. Brand: New Era; COOLERA technology wicks away sweat; Contrast-color undervisor; Heat-sealed silicone graphic on front panels; Imported; MICROERA technology acts as an anti-microbial to reduce odor; Material: 100% Polyester; Mesh mid and rear panels; Mid Crown; Officially licensed; One size fits most; Slightly Curved Bill; Solid front panels with eyelets; Stretch-Snap; Structured fit; The 9SEVENTY provides a modern adjustable fit and versatile style with its structured crown, semi-curved visor and performance stretch sweatband; Wipe clean with a damp cloth. Imported Product Specifications 6.70 x 8.10 x 0.50 Material & Care 100%Polyester Machine washable or dry clean for best results