These shoes are comfortable but are too small. They run about a half size smaller than what I normally wear in a 11.5. The width is fine, just too short. They are extremely lightweight. I work in a hot environment and I was hoping the lightweight would be cooler than other shoes. Disappointed in this respect as well. Maybe this would be better if the size was correct. The price was great. I am going order another pair a half size bigger.  Updated review: Have had these several months now and the bottom is beginning to separate on one side. I wear these at work where I am on my feet all day. Maybe for stationary training it might be ok. Lowered my rating to 3 stars.