Step up to the plate with the same headwear worn by your favorite Arizona Diamondbacks players in this 2026 Batting Practice 59FIFTY Hat. The structured high-crown silhouette and flat visor deliver the classic fitted feel that has defined New Era's baseball style for decades. Six-panel construction with eyelets ensures breathable comfort, while bold team graphics showcase your loyalty. Brand: New Era. The 59FIFTY is the originator of the true fitted cap and the official on-field hat of Major League Baseball. Six-panel construction with eyelets on front panels for breathability. Wipe clean with a damp cloth. MLB logo embroidered on back with raised details. Material: 100% Polyester - Crown & Visor; 100% Cotton - Undervisor. Embroidered team graphics with raised details on front. Mid and rear mesh panels. Flat bill with ability to curve. Officially licensed. Fitted. Imported. High Crown. Structured fit. Size: 7 1/2. Color: Black. Gender: male. Age Group: adult.