Personalized Happy Clam 1st Birthday Newborn Layette. 1st birthday HAPPY AS CLAM 1 YEAR OLD I AM Newborn Layette - White with smiling pink clam in a purple shell blowing bubbles. 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