Dynamic, iconic, and undeniably bold—just like your D-backs pride. The New Era Diamondbacks 9FORTY MC A-Frame Arch Cap lets your fandom do the talking. Made from soft cotton fabric, this cap offers a relaxed, breathable fit that keeps you comfortable whether you're catching the action live or repping the team around town. Top off your game-day look with the New Era Diamondbacks 9FORTY MC A-Frame Arch Cap and show off your Arizona spirit—every play, every day.