I've gotten a similar back pack from North Face for my daughter, an 8th grader.  You could imagine the amount of stuff she carries to school and back every day.  It gets heavy quite a bit.  After months of using the bag, quality seems to hold up so far.  I've bought another one for my son, who will enter middle school next year.  If these bags can give me more than 3 years of use.  I'll buy again for their high school and college years.