Willikiva backpack is worth your purchase， own design for you which is none unique Material:Polyester， Waterproof ，lightweight,0.522 lb only.Approximate dimensions :12.2"H X 9.4"L X.3.5"W inch There are children's favorite dinosaur designs, very cute Safety harness leash backpack, with an anti-lost leash, keep your baby in your safety distance,the chest trap is not easy to slip The main compartment can hold a lot of things, such as an ipad, a set of clothes that are not very thick, fruit, food, fruit, small books etc, and small toys can be put on the front pocket. You can put down the A4 size book.