For everyone who supports the Boston Red Sox: Weve got the perfect hat for you. The 9Fifty Boston Red Sox Snap Cap from New Era features a classic cut with a typical, pre-bent visor. The peak measures 7 cm in length, whilst the head section is 11 cm tall. Thanks to the adjustable snapback closure at the back, the MLB baseball cap can be adjusted to fit any size, ensuring a comfortable fit at all times and feels great to wear. With classic embroidered ventilation eyelets to keep your head at a pleasant temperature.