Personalized Unicorn Christmas Women's V-Neck T-Shirt. Unicorn Christmas - A cute little unicorn wearing a Santa hat uses some unicorn magic to make a sparkling Christmas tree with rainbow decorations. 5.0 oz., 100% pre-shrunk cotton Athletic Heather is 90/10 cotton/polyester 1x1 rib collar with mitered v-neck Shoulder-to-shoulder taping Ladies' fit