Show some love for the Boston Celtics and their Irish heritage with this iconic staple Celtics dad hat that every Boston basketball fan should have in their collection. The 2019 NBA City Series from New Era brings us a fresh twist on the classic Boston Celtics dad hat with this grass green adjustable strapback. This green Boston Celtics dad hat features a green soft unstructured crown, a green bent brim, and a green adjustable strap. Embroidered on the front of the Boston Celtics dad hat is the Boston Celtics Golden Clover. The oversized version of the Boston Celtics logo has a black Celtic symbol in the center and is embroidered in metallic gold thread, so it really pops. This 9Twenty Boston Celtics dad hat is made by New Era and is well-known for it's iconic fit and feel. Thanks to the adjustable strap in the back, this hat fits most head sizes.