Think you can wear anything comfortable on your feet but you have to have two tall walking sticks in your hands [they did a 'course' at our local country park, which I didn't have time to go on. I did find one walking stick on my travels, but I think it would make me a bit lopsided. I'd imagine it's quite good if you have arthritis in your knees [which I have] as your arms take a bit of pressure off your knees. I must try it one day, as I used to walk for miles before my knees wore out [probably why they wore out..had I been a couch potato they'd be fine now!]. When I lived in Cornwall I didn't have a transport [bunic will understand this] and I used to walk to the pub on a Saturday night; problem being I lived in St Tudy and the pub was the Cobweb in Boscastle. that took a few years off me knees, I reckon.