I walk a lot on concrete and am 65 years old. I’ve had pain in my feet, hips, and back, I thought it was just aches and pains you have to live with when you get older. I’ve only had these 5 days, and I have no pain, none. I’m finishing another 12-hour shift, and I feel great. I keep waiting for the other shoe to drop, but I keep feeling better. You have a customer for life.