Personalized Country Code Japan Newborn Layette. Japanese pride Newborn Layette - White with the three letter country code for Japan, JPN, in the colors of the Japanese flag. 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