Low profile and crush proof backpack insert?

hello!

I have a MacBook Pro 15" 2016 model that I carry in backpack that is frequently very full with books and/or clothes. I am trying to find a way to keep the screen from getting crushed against the keyboard. My previous MacBook Pro 15" retina 2013 model had light marks on the screen from the keys (not very visible though) and a few dead pixels because of it (quite visible). It seems like a simple crush-proof ABS or carbon backpack insert with light foam would do it. I can't believe no one has made something like this yet!

All of the sleeves and "hard cases" out there protect against scratches but not weight pressing on the top of the laptop, with the exception of the pelican cases but that is overkill for what I am looking for.

Has anyone seen an elegant solution to this problem??

thank you!