Personalized Shih-Tzu Dad (Worlds Best) Dog Breed Men's V-Neck T-Shirt. This fun worlds best shih-tzu dad Men's V-Neck T-Shirt - White is a great gift idea for a shih-tzu owner or dog lover. 4.7 oz., 100% pre-shrunk cotton Narrow, set-in 1x1 mitered V-neck collar Shoulder-to-shoulder taping Double-needle stitched sleeves and bottom hem