Comfortable enough but having adjustable flaps where they should be to keep feet from slipping off the insole, especially when walking uphill is disappointing. More than a week and I still have to adjust and readjust. The insole may be of a different material or with stripes to help keep feet in place, but for now that's fine. I'll keep looking for something else and keep these as I've used them enough that they can't be returned now.