I bought two wheeled backpacks and this one is by far the most durable and easy to use. It's very strong and good quality. I also purchased item#11271715 the olympia 19-inch rolling backpack at the same time, and it was so flimsy and made very poorly. I needed to return it due to the backpack splitting at the seams(on the bottom). I only had one small book and a lunch box in it. I am glad it was under warranty! I then ordered this PacificGear and I LOVE IT!!!!What a BIG DIFFERENCE!!!!