Celebrate the history of Boston running tradition with the adidas Men's Boston Marathon 26 Half Zip. This warm half-zip highlights 130 years of marathon history, with heat transfer logos in classic Boston colors on the front and back. The soft, lightweight fabric acts as a great baselayer, blocking the wind and pulling sweat away to keep you dry. The waffle design of the fabric keeps you comfortable when that cold Boston air comes around. More than a keepsake, this zip shows off your dedication and hard work as you gather with 30,000 of your friends on the streets of Boston.