Personalized Sweet Sixteen SS Toddler T-Shirt. Sweet 16th birthday Toddler T-Shirt - Heather and Royal with 2 pink S's that make a pretty heart, a cute pink flower and text that says SWEET SIXTEEN. 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.