This is the trail version of the WT20, but not quite. I really loved the running version WT20 which shows a strong arch support and a really flat sole. This one shows the flat sole and the arch support but maybe due to the leather is not as flexible and therefore not as comfortable. I bought those for walking (city type) as I like the flat sole. But I found them not easy to get used to and after a short while my feet would hurt. Be aware that walking too often and too long with this type of shoes can hurt your Achilles tendon (read about this type of shoes before buying) But they help you as well to build the appropriate running posture with time. Overall consider the WT20 version for more comfort.