Not sure how these will hold up in the long run, but they appear to be well-enough made and they are VERY comfortable. I bought the 10-11 size for two kids--one a size 10 and one a size 10.5. The 10-11 worked well for both of them. I wear a women's size 8.5, and I even thought these were comfortable. Granted, they were big on me and would look ridiculous if I were to wear them, but what I mean is that even on my smaller foot, these stayed on well when I walked in them and they provided good comfortable support.

I bought these for my kids to wear as shower shoes at camp. They appear to have great grip, both on the sole of the shoe, and in the bed of the shoe where your foot rests. The most important thing to me was that my kids have shoes that would be safe to wear while wet with no slipping. These are definitely going to serve their purpose as great shower shoes for camp, and I really hope they last a long time because we really like them.