Bring the wave, Mariners fans! Boost the energy of your crew and rep Seattle pride in style with the New Era Mariners Core 9TWENTY. Part of New Era's 1920 Silhouette collection, this cap blends relaxed structure with everyday style for game-day wins. Whether you're cheering from the stands or backing clutch plays from the sidelines, the New Era Mariners Core 9TWENTY keeps your look fresh and your Mariners spirit loud.