Celebrate St. Patrick's Day with a touch of baseball pride with this Houston Astros 9SEVENTY Adjustable Hat from New Era. The 9SEVENTY provides a modern adjustable fit and versatile style, while embroidered St. Patrick's Day-inspired graphics with raised details help you show your team spirit. Built with MICROERA™ technology, this lid acts as an anti-microbial to reduce odor, perfect for a day at the ballpark or celebrating with friends.