Enjoy this oversized heavy-duty backpack and backpack the world. Along with the high-quality fabrics used, this backpack is stitched with a superhold lining that is also machine washable. So you don't have to worry if you get a little rough out on your next excursion; you can wash it in a washing machine and have it come out as good as new. So, take a gander and check out all of the 15+ designs before you leave for your next venture. The bag is approx 15.5 inches x 18 inches. It has a very large 14.5x14.5in zipper pocket on the outside and a super strong 10.5x14.5in velcro pocket on the inside.  Enjoy this backpack that's great for school, a day trip, an overnight bag, a personal item for your next flight, and so much more.