I ordered this for daily home use, so it gets a few hours of use every day.

- First off, the straps are too small for the size. I have regular size feet, and this looks like it was made for people with small feet. After a month of use, the straps are still tight.
- I had significant black/blue residue on my feet when I first wore them. I washed my feet and the sandals, and the residue was gone.
- I had blue stains on my feet for over 2 weeks. Felt like I was turning into a character from Avatar.
- After 4 weeks, everything has only gotten worse
- The material has also developed a "sweat outline" in white. Not sure what this is.

I have photos of all these effects, they are gross.

I would not recommend this product.