61 and I can still climb anything š„¾ It was the way down that was ending my hikes. Last two miles, side-stepping down while everybody waited at the car. Poles helped ā but they take both your hands. Here's the thing nobody told me: going up your muscles push, going down they brake. Thousands of times before you reach the car. So I put an air chamber under the kneecap. Sits between the ground and the joint on every step down. Full pack, six hours, never touched it š Last month I came down nine miles and I was the one waiting at the car š 60% off the pair + free shipping. 90 days to send it back.