I bought these to replace my Nike Flex running shoes. Less than two months later, the shoes were worn out, there was a hole on one sole and the other was almost worn out. The fit was good, very light but not durable at all. I wore them to run 1.5 miles every day and jog 3 times a week, also 1.5 miles. All on the streets near me. It would be a good casual shoe but not suitable for running or walking.