These are sturdy and attach more easily than most other handlebar bags, but this thing will work for everything. Keys, locks, wallet etc, but crowler cans as advertised, water bottles. I even used it to bring a pint of ice cream home from a shop several miles away, remained cold the whole time. I even filled the interior food safe zipper bag with curry. Yes. Curry. Did it stain it? Yes. But will it be worth it doing winter mountain biking with a hot meal midway through? Are you kidding me? 100%.