I have been wearing Vibram Five Fingers for over a year now so I am used to going barefoot for weight training, boot camp and short runs (on and off road). I wear my fivees snug fitting and without socks but sometimes I get cold feet when outside. I have started to run longer distances and thought that I would order these as an alternative, just for a change. I read the other reviews and took their advice and ordered 2 larger sizes just to try the fit with some (five toe style socks). With socks I only needed up size by a half size and they were a perfect fit, not too snug. I went out for 6 miles the first time, some road and off road and my feet were very comfortable and warm too. I hope that I don't encounter the same problems as others with shrinkage and material coming away - but only time will tell. The service from this website is great and I am sure that if there are any problems in the future they will be supportive.