Personalized Heart Health Cardio Time Fitness Newborn Layette. Fitness themed it's cardio time exercise Newborn Layette - Pink with heart cardio logo for anyone who works out for heart health. 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