Personalized Happy Birthday Daddy Outfit Cute Boy Toddler T-Shirt. Cute birthday party outfit for boys to wear to say Happy Birthday to Dad with bear in helicopter design. A toddler-soft cotton tee in look-at-me, big kid colors. 4.5 oz., 100% combed ringspun cotton. White is sewn with 100% cotton thread. Topstitched rib crew neck. Double-needle stitched sleeves and bottom hem. Shoulder-to-shoulder taping.