Way back when, we came up with a Classic. Guys liked it because it looked good, felt good and did their bodies good. Time marches on, and we thought it was time for an update ? so update we did. Introducing the Kalso Earth? Shoe Classic Too. All the comforts of the original, but with a more modern design, and a cool speckled sole with deep, flexible treads. It works your body the same way, but now with a fresh dose of styling to back it up.Every Kals? Earth Shoe features the original ?negative heel? design that sets the wearer?s heels slightly lower than the toes at a gentle incline of 3.7? The ?negative heel? design is based on the popular yoga position, Tadasana (the ?Mountain pose?) which is reputed for its ability to facilitate enhanced respirationBy naturally re-positioning the body, and reinforcing the ?negative heel? design with anatomic arch support, walking in Kals? Earth Shoes mimics walking barefoot in the sand and can help improve posture and reduce joint stress