I can't usually wear shoes with any kind of back because the back of my ankle usually gets irritated. These were so cute that I had to try, though. That footbed is the most comfortable material you'll find - it's plush and soft while staying supportive. I love these 'lavish' colors (I have the black with grey). The white color sold out or I'd have those too. I can wear these for long walks without any discomfort. Thanks, Merrell!