Personalized POP POP Man Myth Legend Newborn Layette. POP POP. The man, the myth, the legend. Celebrate pop pop on Father's Day with this cool, well deserved, Newborn Layette - White. 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