Even the inside pockets and dividers in this backpack are well stitched and well thought out.  The exterior features a sturdy canvas.  My 7th grader has been using it about a year, and it is still solid.  This is about the time the other backbacks start to tear at the seams, or the straps tear off, but this one is still going strong.  There are many color choices.

UPDATE: Son just finished another school year with this backpack (2 1/2 years total), which is still in good shape. Size is big enough for heavy textbooks, binders and lunchbox also.  Very happy with this item!