I'm primarily a commuter, but I do a few fun rides in the winter. My issue is that once the temps get into the single digits, my hydration freezes and I can't use it. My commute is only 5 miles so I can usually defrost that once at work, but when I'm going to be out for a couple of hours, I'd like to keep things liquid.
I thought about using one of the insulated water bottles. What works?