Possibly, seems there would be enough material but not sure if it's suitable material...
No backpacks in stock though at the moment. ATM I'm trying to make a version of my backpack with a 'cargo flap' which can (hopefully) carry more bulkier stuff like boxes etc.
@Buildhigh looking for a backpack, do you have anything in stock currently?
have you considering re/upcycling materials? i have one of these amazon delivery cubes and was wondering if it can be made into a bag.