I use Hampstead MM for my every day work bag and I love it. I carry water bottle, lunch, books etc in it and it holds up really well and the red lining stays clean a lot better than you would think.
I am not gentle at all with this bag and it still looks like new AND the straps stay on your shoulder.
I am not gentle at all with this bag and it still looks like new AND the straps stay on your shoulder.