I thought it was no big deal until one day all of my stuff fell out because the binder ring also broke open

My zipper broke the second day I got it

This binder broke the first day my son used it, but the problem could be that he may have stuffed it too full not wanting to carry a book bag

I've gotten fairly good at this by now, so it doesn't bother me as much as it did when I first got it, but it's certainly worth noting.