It's canvas and has a similar color to most Mark VII bags I see on the site. It's roughly the same size based on the measurements written on a card I saw inside the bag. It originally had "leather" straps to close the bag (which I took out).
I installed Todd's strap on it. I'm gonna find a place where I can have snap buttons installed to be able to close the bag and sort of finish the look.

Here's my old close-enough bag:

The old bag is bigger and made of cotton. Although I like the functionality of the old one, I may start using the new bag because it's smaller.