Boston Celtics jackets keep you looking sharp and warmed up for the game. Shop the Official Celtics Store for your Celtics jackets featuring all the best details so you can stand Celtics proud. We've got adidas warm up jackets, on court jackets, track jackets and more, all sporting the official logo from your favorite team. Shop for Boston Celtics on-court warm up, track and fitted jackets. We carry the widest variety of Boston Celtics basketball jackets from adidas and Mitchell & Ness.