I always wear boots while backpacking. I had one ankle sprain six years ago (not while hiking) and virtually every
hike I find that my boots seemingly prevent me from rolling my ankles. I don't consider myself highly prone to
ankle sprains, but I have had one pretty good sprain.
I've occasionally seen people hiking in trial shoes.
Recently, I did a long day hike (about 15 miles) in tennis shoes. I was willing to try this because I was not carrying
anything but food and water, and I reasoned my legs would not become as fatigued as they would if I were carrying
a pack.
It really worked out well. I would want thicker soles if I were doing this long term.
My shoes are about half a pound each whereas my boots are probably more than 2 pounds
each. It would really be nice to reduce my feet weight as that would reduce strain on all
my joints.
Does anyone have experience or expertise on the risk associated with switching from boots to trial shoes. I figure
a good ankle sprain while hiking would end the hike for me and at least one hiking companion that would stay back
with me. I'd then have to hobble off the mountain after whatever rest I could manage depending on time available
and proximity to water.
On the other hand, lighter trail shoes might reduce fatigue such that I'm less likely to need ankle support.