Why would you put an open beer in your bag? You open it, and drink it, then throw the can away.right now, only thing I would want is a gyroscopic bottle/can holder down near the base so I could put my open beverage there while putting the bag down to hit a shot. Have had too many beers either spilled or me having a heart attack to try and get it back on solid ground.
I am toying around with how to get one on their myself... but will have to see. Otherwise I am very pleased with my current bag.