Rep your Boston Red Sox with pride and authentic on-field style in this Player Replica 39THIRTY M-Crown Flex Hat by New Era. As the official replica of the cap worn by all MLB players, this hat lets you feel like part of the team. The 39THIRTY's premier stretch-fit design ensures a comfortable fit, while the raised embroidered graphics showcase your unwavering Boston Red Sox fandom. With its structured fit and semi-full M-Crown shape, this hat is the perfect way to top off your game day look.