This bag is for my husband so to "man" it up a bit, I used VERY heavy duty canvas, sewed the webbing into the base so it runs along the edge of the bag, included a 50mm buckle on the strap and added buckles on the front. I divided the inside into two pockets - one for the laptop and one for other stuff. It is lined with corduroy and instead of interfacing, I used 5mm rubber. It gave the bag extra structure and extra padding.
