I am using this bag from 11 months and I am not satisfied with it's quality as this bag is not made of good quality material and this bag cannot able to take more books and it torn because I have taken 6 books once so I gave it to one tailor shop and said him to sew this bag and done it very nicely but another problem I faced with this bag is that it get wet in little bit of rain and the inside books get wet and other materials also so I will recommend all to not buy this product