Personalized Hiking Makes Me Happy Mountain Hiker Newborn Layette. Cute hiking makes me happy Newborn Layette - White outfit for anyone hiker who enjoys the mountains and the outdoors. 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