Collection Wizarding World™ Features: -Ajustable knot ensure the perfect fit -For newborn to 4 months -Lightweight fabric keeps baby comfortable Fabric: 69% polyester / 28% rayon / 3% spandex About the brand Copper Pearl was originally created by two moms with the idea and hope to create a line of premium, trendy, and unique baby accessories and clothing. Each product that is sold goes through a rigorous design process to ensure that the designs chosen are both highly functional and fashionable.