These shoes are by far the one of the best running shoes Ive ever worn. I got these because Im training to be a police officer and I run about 1 mile a day. With my old Topos that I love I can run 1 mile at around 6:30 consistently but with the Velocity shoe I can run about a 6:10. I don't know if its mental or the shoes but I don't run any differently. These shoes are extremely light and theres a lot of voice to them. They are used running on hard tracks and not trail running as these are not suited for trail running. If you trail run, you might want to try the Underarmor fat tire shoes with the BOA feature. I have a pair of high top Fat Tire shoes because Im currently a Mailman and I walk about 9 miles/ day. I can tell you the fat tire shoes are the best for trail running. They are Gortex and they have Michelin rubber soles and very durable. The BOA system is also one of the best Innovations Underarmor created. But back to the Velocity. They are light and extremely comfortable. I have tried Nike, Reekbok, Adidas, Pumas, Sauconys and many others but these are by far the most comfortable shoes Ive ever ran in. They also make a good shoe for casual use. They match anything. I am speaking to the grey color ones. Again, they are the best running shoes I have ever worn plain and simple. I did not buy these from amazon. I bought them on the Underarmor website. I would recommend these to anyone whos going to run a lot and wants a light shoe. The new Nike airs May seem more comfortable but hey aren't and they are much heavier than he Underarmor ones. Plus, they come with a lifetime warranty so if your shoe breaks Underarmor will replace them for free.