3 Marthas Layette Converter Gowns are made of super soft, 100% pima cotton. They are available in sizes 0-3 months and 3-6 months. The gowns feature handcovers to protect baby's soft skin from fingernails. Snap closures make changes a breeze and allow for an easy switch from gown to pantlegs for carseat time. It's a wardrobe staple during the first 6 months!