I live in CO and have used them hiking in Summit County (peak 8-10). This week went to Mt Rainer, WA. went on two "strenuous" hikes - Comet Falls and Skyline Trail loop. Snow, ice, rocks, gravel, water, etc. These shoes are great. Very comfortable, and so far durable. We'll see how they stand up to test of time. Buy them. Don't let the fact that Reebok is not really known for trail shoes #in the hiking community#, discourage you. #trend follower- i.e. Soloman, Merrell, etc.# They also look very cool walking around town to the brew pubs.