The only reason why I don't give this shoes 5 stars, is because the support around the Aquilles tendon it hurt me. I had a blister in both ankles, where the support of the shoe touches. I wore them the first time to go to CrossFit, probably that was my mistake, should have felt them longer before working out, but afterwards, my skin on that spot was red and with a little blister. Other than that, they are suuuper comfortable. Every time I did a sprint I felt like flying, the support it's incredible, the traction of the shoe sole as well... so of course I'm wearing them again, I'll also wear a band-it and hopefully they'll adjust soon.