Personalized 1st Birthday Valentine Truck Long Sleeve T-Shirt. 1st Birthday Truck Long Sleeve T-Shirt - White has cute truck filled with hearts and a big number 1 on it. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL