Just got back from a WY elk hunt using the trackers for the first time on an extended hunt. No issues at all with side hilling, climbing, and coming down mountains. I had one stitch come loose on the toe, but no leaking or pulling apart yet. Only minor complaints are my feet got cold FAST if I wasn't hiking. I may need to look into the vivo thermal insoles and/or some insolated booties for glassing. Also one of the days we hiked in a lot of snow and they wetted out within an hour. Does adding the painted rand that I've seen in previous posts help with this? I didn't have a pair of waterproof socks with me, so probably need to buy a pair of those for days I know that will have heavy rain/snow. Otherwise my feet were way happier in these compared to my Crispi's.