My wife and I wore these for 34 miles last week hiking Utah's Bryce and Zion Canyons in February. It would be immpossible to have gone safely where we did without them. They never came off , not once in very tough conditions. This is the most sensible thing I have bought in years. We have hiked all over the world. I can only look back at how our range was limited then, and injuries that could have been avoided. This is a high quality product, and I am confident it will last.