Personalized Monster Truck 3rd Birthday Men's V-Neck T-Shirt. I'm Three! A red monster truck drives over the words. Great third birthday gift for your 3 year old who loves trucks. 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