Personalized 3rd Birthday Sail Boat Girls Toddler T-Shirt. 3rd Birthday pink sailboat Toddler T-Shirt - Light Blue has big number 3 on the sail for a nautical themed birthday party. 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.