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.