Hey Rob, thanks for sharing all the info and photos of your new bag. As a huge fan of the traditional rando bag, I think there are some interesting design ideas there.

With respect to the elastic closures for the top lid: since the closures have been moved to the corners, does that mean that the grommets on the production bags will be placed through the map case vinyl, like on your prototype? That would seem to negate the water-resistance of the map case , but maybe I’m missing something.