Personalized Whale Little Sister Toddler T-Shirt. Little sister Toddler T-Shirt - Apple Green with a cute pink spouting whale in the ocean. Colorful text says LITTLE SISTER. 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.