The Itzy Ritzy Black Dream Convertible Diaper Bag is a medium-sized baby diaper bag made of polyester material. It features a solid black color with a unisex design, making it suitable for both baby boys and girls. The bag is lightweight, making it easy to carry around for parents on the go. With its versatile convertible design, this diaper bag can be used in multiple ways to meet the changing needs of parents and their babies.