I have bought two different pairs of shoes from this manufacturer and they have literally changed the way I wear shoes. I will never have a pair of tennis shoes or sneakers again. These shoes are both the most comfortable and efficient running shoes I have ever worn. They take some getting used to and have their downsides. Buy sneakers with a thinner sole and lining, and in summer you'll feel the heat of concrete through them. It is not recommended to walk on sharp stones. That being said, I…