The feet get warm and sweaty. If I walk enough with them, the skin at the point where the knot is starts to turn red and feels like a blister.
I prefer the old ones I had with the thong (strap between the toes).

I bought them for my mother and they cause blisters on the sides of her feet immediately. I tried them myself indoors for half a day and the exact same thing happened. If they didn't give us blisters, they would be nice slippers.

I highly recommend them... I have had them for a year now, they have been through a lot, winter-summer, and I wouldn't change them for anything. In fact, this year I will buy another pair. I never believed that I would wear such comfortable flip-flops! This particular model fits incredibly well! Crocs, guaranteed.

I would like them a little wider in the toe box. Otherwise, they are very comfortable and lightweight, especially for people with sensitive heels who cannot tolerate standing and walking for long periods of time.

Very comfortable slippers, especially for people with neuropathy they are perfect. They don't smell like plastic like other brands, I highly recommend them!!! And strangely enough, as long as I wear them, my waist doesn't hurt either!!

You wear them and literally fly. Normal size but needs a thinner sole, I don't have one and so they are quite wide on the top for me.