I'm a big guy. I fought in the desert, which totally messed up my knees and shins and gave me a painful lifelong case of plantar fasciitis. These are the best most comfortable sandals I can wear for extended periods of time. I took these on our vacation to Rome where we did a lot of walking. I usually have to sit and let my feet recover every 1/2 hour on trips. With my Teva Toachi's (still not sure how to pronounce it) I never even noticed my feet the whole time I had them on. The soft rubber compound makes for a very smooth ride for hours on end. If you're a big guy with foot probelms, I can't recommend these highly enough. Give them a try. It's just about the perfect sandal. I really should get a backup pair.