I usually wear between a 10 and an 11 in womens shoes, as my feet seem to be closer to a 10.5. After reading other reviews, I purchased an 8.5 in mens. These shoes fit perfectly.  The soles/base of the shoes feel sturdy and have a little more weight than other running shoes. They offer more support.  I use them for aerobic exercise inside the house and they serve their purpose, but I think the soles are probably better for light trail running or gripping outside surfaces.  I really like the color and find them to be quite comfortable.