BOSTON MARATHON MERINO WOOL TEE A LONG SLEEVE MERINO WOOL TEE FOR RUNNERS OF THE 2019 BOSTON MARATHON. Push yourself through all 26.2 miles of the biggest race of your life. This Merino wool tee wicks sweat naturally to help regulate your body heat for optimal comfort and is odor-resistant. The scoop-neck top is cut for a comfortable, unrestricted feel. The 2019 Boston Marathon logo sits proudly on the front.