Get ready for another season of Houston Astros baseball with this New Era Fan Pack Gradient 39THIRTY Flex Hat. The 39THIRTY is New Era's premier stretch-fit style, engineered specifically to create a comfortable fit. An embroidered fabric applique Spring Training patch with team details on the front crown lets everyone know who you're rooting for. With a five-panel construction with mid and rear ventilation eyelets, you'll be repping your team comfortably all season long.