Personalized Shih-Tzu Dad (Worlds Best) Dog Breed Women's V-Neck T-Shirt. This fun worlds best shih-tzu dad Women's V-Neck T-Shirt - Aqua is a great gift idea for a shih-tzu owner or dog lover. 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