Personalized Nice Until Proven Naughty Toddler T-Shirt. Nice Until Proven Naughty. Santa Claus is watching, but everybody needs a little breathing room. Funny Christmas gift for everyone, whether they're naughty or nice! 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.