I created this backpack with Dr. Who theme made of cotton fabric. It measures 17 x 13. The width of this is 6 inches. Has a 3 D zip pocket on the outside and wide adjustable straps. Has a double zipper pull on top with a loop to hang. The inside is lined with navy blue solid cotton. The inside has a wide pocket and a small elastic pocket on the side. This backpack has been well insulated. There is a navy blue insert 9 x 12 in the middle that is more cushioned for a laptop. The insert is removable. I made one for my son. He loves it.