Stand out in the crowd and showcase your Seattle Mariners pride with the New Era Mariners 59Fifty Felt Fitted Cap. Featuring a fitted construction, this cap keeps you feeling comfortable and chic through the highs and lows of the game. The super-soft cotton undervisor ensures protection from the elements. Express your Mariners pride boldly all day, every day, with the New Era Mariners 59Fifty Felt Fitted Cap. Crown/Visor/Button: 100% polyester; Undervisor: 100% cotton.