I have an Avenir Excursion Insulated Rack bag. The bottle I am drinking on is in the slot on the side and the rest are inside. On Saturday I was in a convenience store that was running a special on 32oz Gatorades. I ended up with 2 32oz Gatorades plus 3 16.9 water bottles in the insulated part! I had some granola bars in there as well. Suddenly the bike I was riding went from light to gaspipe in a matter of seconds!