I just wanted to let all of you who are on the fence about buying these shoes, to let you know that they are so worth it. I got mine and I walked 3 miles the day I got them. I completely felt the burn in my calves, hamstrings and glutes. I think once I master them they will provide for some greater results. I will be buying every pair in every color. I can't wait for Skechers to broaden this line.