Seattle Mariners Cooperstown 59Fifty Fitted Baseball Cap by NEW ERA x MLB

The Seattle Mariners have one of the best-looking throwback and retro identities in all of baseball with their Blue and Gold colorway. Pictured here is the letter "S" used the Mariners back in 1987 up to 1992 - was first introduced 10 years after their entrance to the MLB in 1977. This logo was the last of the Mariners' Blue and ...