Stable, chic and much less sensitive than it looks

We have this pack in color "Pewter" as a school backpack for our son (10th grade) purchased and are in every respect absolutely happy with it (and our son!). The backpack is stable enough to be equipped with a number of staplers and books, without then sag as it ..... k gladly do the backpacks of E. He also looks really good, the colors look a whole a little darker than on the photo. Our concern that the backpack may might be too sensitive to dirt and would be quickly unsightly by the constant stop / lying around on the floor in the class were unfounded, because the surface is completely stain-resistant and wipeable.