Although I have done a fair amount of hiking and am in good physical condition, I have done little backpacking. My wife and I are gearing up to start this Spring but I am a bit concerned about shoes. I have had a tendency to sprain one of my ankles in the past and on a recent hike to quarter dome in Yosemite I turned it slightly right out of the gate. I finished the hike but sure don't want to have this happen when backpacking, don't want my wife to have to carry me out! I would love any suggestions for shoes, brands etc.