NOTE:  Kalso Earth Shoes with the negative heel technology can be very different if you haven't worn them.  They are very popular with people who have foot issues and/or are on their feet a lot.  The toe bed is larger than normal, so they are roomy.  The heel is a little lower to relieve pressure on the toes.  Please keep this in mind and read on-line reviews and ask any questions before purchasing if you are unfamiliar with this brand.