This a carters packback that is 13 wide by 14 up and down. The back of the backpack has 10inch straps with 12inch adjustable straps. The front has a side pocket that closes with Velcro. The top of the backpack has an opening that opens to 13 inches and closes with a pull string and opens with the same pull string. The top opening closes with two straps that have Velcro.