I bought these for my husband, he no longer runs but he treadmills everyday. I had to return the first pair 10.5 due to short toe box. I ordered an 11 and they are almost perfect. Shipping is very fast and the free return is a nice plus for the customer The toe box again just seems a little narrower then his last pair of NB but they were a different style, a wide would be too large for his foot.  He normally wears a 10.5 M. These shoes are a nice color acutally nicer looking in person then online. I would have given them 5 stars if they were a little wider in the toe. I would recommend buying a 1/2 size larger, Will come back later if there are any issues with the shoe. My husband would recommend this shoe for general excercise but for running he said he would need a wider toe for impact esp. if you strike your toes when running. I hope this helps. I know I use recommendations from other customers and find them to be of the utmost help.