I bought this Crocodile a reek Classic backpack to replace the one my 6 yr old son had been using for two years.  All I wanted was the same quality just a different design.  To encourage his interest in science the one with the  moon landing and the solar system in the background was perfect.  These are machine washable, but a prewash with a hard brush removes the bulk of the dirt.  Another attraction was that this not only did not have any commercial cartoon characters on but also that it did not stink of cheap Chinese plastic.  The item was cheaper at Amazon than in stores around my house (Whole foods sells them for $9 more).  This is a good investment as it is cheaper to buy this for two years than a cheap one from a discount store every year-- or less.  Enjoy