I have started buying the Vebram five finger shoes which has helped me with my posture and pain of my back. I love these socks cause you can wear them on either foot and I like that they don't just go up to the ankle like the more expensive brand as my ankles always get cold. I will be buying more socks from this vendor in the near future. Great product and fast ship. I am very happy with my purchase and will be back for more.