All Me O My Earth prints are eco-friendly using nontoxic and eco-friendly inks in compliance with Oeko-Tex Standard 100, thus adding extra protection to your baby's skin. Each Footie removes 5 bottles from possible landfills and oceans as well as donates milk to baby rhinos! Zip from top to bottom or bottom to top, keeping baby warm during those late night changes. Made from 58% Certified Organic Cotton, 37% Repreve (polyester from recycled bottles), 5% Spandex. Machine washable, tumble dry low. Two-way zipper with guards to protect baby's ankle and chin!