As a retired biomechanics professor
As a retired biomechanics professor with terrible plantar plantar fasciitis, I can tell you that I stumbled across these sandals about two years ago - two years later they still LIVE on my feet. I bought every single colour there is (no kidding!). They're amazing. You can walk straight through the little waves on the beach around your ankles, and they never come off. BEYOND BRILLIANT. Anyone with sore feet...you don't HAVE to be in pain. Just try them. I was on crutches two years ago. Now I walk up to 6km per day in these sandals. On the beach. In the rain. Just rinse off the sand and go. Don't live in pain any more. Try them.