Fanatics has a complete selection of officially licensed Boston Celtics Team flags, Banners, and Pennants. Celebrate your team spirit indoors with easy to hang flags for an office, playroom, man cave, or youth bedroom. Take it outdoors and proudly display your favorite Boston Celtics team with quality-made flags of Water-repellent & UV-resistant material. Set up your next tailgate waving the perfect game day flag in addition to an on-the-go car flag on your motor vehicle. When it comes to banners, house flags, garden flags, car flags, and more, Fanatics has it all for every fan.