I wonder how many people really use trail runners. It seems to me that most people I talk to that go ultra-light still wear boots. I know I'll mostly get responses from passionate trail runner users, but it would be nice to get some idea of how many people do this.
I see a few problems with trail runners. First of all, people say that with light loads we don't need as much ankle protection. But it seems to me that we are usually hiking over non-smooth terrain and it is still very possible to sprain an ankle when carrying a light load (or nothing at all).
Second, regarding water, I've read that people just choose trail runners that dry quickly once it's stopped raining. Basically just letting your feet get soaking wet. Given how much heat is lost out of the extremities that seems very unwise and dangerous. It seems that waterproof boots would keep your feet much drier and be much safer, even if they didn't work 100%.
I've thought of using hinged ankle braces with trail runners to reduce weight and allow for front to back motion but protect against ankle sprains. I suppose gore-tex socks could fix the second problem I mentioned. Any thoughts?

