Head to the ballpark with a fresh piece of game-day headwear in the New Era Mariners 5950 Evergreen Side Patch Fitted Hat. Featuring a fitted construction, this cap keeps you feeling good and looking chic throughout the game. The undervisor made with premium fabric provides effective coverage and reduces glare. Sport your fandom from the streets to the court with the New Era Mariners 5950 Evergreen Side Patch Fitted Hat. Crown/Visor/Button: 100% polyester; Undervisor: 100% cotton.