Vintage Deadstock Earth Shoes Boots Hippy Retro Anne Kalso 。Great Pre-Owned condition! Size Women’s 11 / Men’s 9.5 Minimal wear Tan or yellow brownish color * Brand Origin: The shoes were invented around 1957 by Danish yoga instructor Anna Kalsø and first introduced to the U.S. market in New York City in 1970. * Design Feature: The sole is thinner at the heel than the forefoot, a \"negative heel technology\" that some believe provides health benefits and an unusual walking experience. * Materials: The shoes in the image appear to be made of leather with a moc-toe style and distinctive white stitching.