With a nylon reinforced bottom and lining this diaper bag is durable and long lasting and won't tear crack or yellow. A nylon changing pad is also included. The backpack diaper bag has four outside pockets:one zippered pocket across the entire side and three open bottle pockets across the other side. The hands-free backpack style diaper bag can be used as a single-strap sling or the sling can be unzipped for regular backpack use. The backpack daiper bag is machine-washable and 100% cotton.