Personalized Worlds Best Grandaddy Men's V-Neck T-Shirt. Fun Grandaddy Fathers Day Men's V-Neck T-Shirt - Charcoal gift for him has blue and white logo for your grandpa. Also makes a great birthday gift for him. 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