The bag is lightweight. I used it to carry my laptop while flying. However, this bag is not good enough. First of all, the strap of the bag is short. You cannot hang the bag on your shoulder. Secondly, the space inside the bag is limited. Thirdly, the seam inside the bag came off within a couple of days. The stitching quality is poor. But this is what you get for the money you paid. I am going to return it.