Order a half size bigger then you wear if you have a wide foot. I did and it's perfect! I wear winter running and have to have 2 pairs of socks but the built in gaiter they are perfect for winter running. Great grip and feel. I run 5-10 mile distances and they perform as you would Solomon too. Today it was 6 degrees and the run before -6 and a -15 wind chill! Stayed toasty warm!