Keep your head cool while repping your Seattle Mariners with this Flag Flag 9SEVENTY Stretch-Snap Hat from New Era.This Seattle Mariners 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.