Personalized 7th Birthday Twins Owl Party Photo Newborn Layette. 7th Birthday twins Newborn Layette - Black cute party photo tee with colorful owls and balloons and it's our 7th birthday quote. 100% combed ringspun cotton 5.8 ounce 1×1 baby rib sleeper. 3/8" flatlock binding at envelope neck and cuffs. Back sleeve flap to protect hands. Elastic opening at bottom. Infant: 0-3 Months