Patagonia's Baby Capilene 1 Onesie is the perfect layer for oven-hot days. This fast-drying one piece won't let their little rumps roast. Made from 100% recycled polyester, supersilky Capilene 1 fabric glides smoothly over skin and under layers, and stays fresh with environmentally friendly Gladiodor™ natural odor control. Double snaps on the under-flap provide up to 1˝" more growing room; flat seams prevent chafe. Recyclable through the Common Threads Recycling Program.