Astros for the win! Cheer on your favorite team as they secure the best start to the season with the New Era Astros 9FIFTY A-Frame Cap. Designed to elevate your game-day looks, this adjustable cap blends sportiness and style with comfort. Gear up to catch some foul balls in style with the New Era Astros 9FIFTY A-Frame Cap. Crown/Visor/Button: 100% polyester; Undervisor: 100% cotton.