Due to plantar fasciitis I needed a comfortable sandal with good arch support. They are good for that. I usually wear a size 12.5 or 13 and I find that for a size 12 they fit well. The strap adjustment works great and the extra pads where they touch the skin provide good protection against chafing. I wear them in almost every everyday environment with no problems. . I was particularly pleased that they didn't slip on the wet ceramic tiles in my spa room. This will be my first stop next time I need sandals! EDIT: new puppy. It turns out I need another pair much sooner than I thought. Yes, I bought another pair!