You need some variety in your wardrobe, so try out Boston Celtics shirts and sweaters from Fanatics! Try out a crisp Boston Celtics button-down shirt for occasions when you feel like dressing up a bit, or choose a fun, floral or tiki pattern Boston Celtics shirt for a festive spin on your usual team apparel. Fanatics also offers the biggest selection of sweaters, including Boston Celtics ugly sweaters and retro sweaters. You’ll be feeling nice and cozy in Boston Celtics flannel shirts and full-zip sweaters you can easily throw on before the next big game. When your typical team tee or jersey just won’t cut it, shop Fanatics for the best assortment of Boston Celtics shirts and sweaters!