These fit perfectly! I have a medium width foot so not wide or narrow. These are soooo comfortable I want to buy a whole bunch of colors. I was worried I wouldn't find another Nike Air that fit like my last one which is discontinued but these fit exactly the same.  My only complaint is for Nike and their use of cheap labor. I know they recently increased some wages of their workers and are making some strides to changing their ways. They had to move their shop to other countries because they got a fine for polluting with their shoe productions in the U.S. as well as alot of shoe places. Hopefully, Nike can become more environmental too and cleanup their production so I am not embarrassed to tell people I can only wear Nikes shoes. I tried on many brands and theirs continuously work for me. They do have some more fashion running shoes out their that are not comfy but their Nike air is staying the same as far as comfort. Hope this helps.