Great job on the bag. For future reference, Soft and Stable by By Annie is great for bags. I used it when I made a tote on both the outside and on the inner pocket for a tablet. I also cut strips of it and put them inside my handles instead of batting. It made it a lot easier to carry on my shoulder. If you decide to add a closure to your bag, my suggestion is to get some heavy duty snaps, then sew on buttons to hide the snaps.
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