10 Best Historic Things to See in Boston Step Back into Boston's Past Reisetipps Boston: 2023 das Beste in Boston entdecken Expedia When to Go and Other Fast Facts for Boston, Massachusetts Boston Massachusetts Downtown City Buildings Harborwalk File:Boston Montage.jpg Wikipedia, the free encyclopedia. The Boston Red Sox Trucker Hat is made with 100% polyester and a mesh back for added breathability and ultimate comfort. Finished with the signature logo on the front, the back features an adjustable snapback closure for a one size fits all hat. This hat is the perfect accessory that works just as well on the golf course as it does off. This custom product is part of our limited edition Greyson x Boston Red Sox capsule, following our collaboration by Greyson for the MLB. 100% Polyester Spot Clean If Needed.