So apparently there is a big difference between a size 10W and a 10.5W with these shoes. These were too small, worn just once or maybe not at all, not sure. I got two pair of size 10 and wore the other pair just once so knew a 10W is too small for me and maybe never wore these. Bought directly from the On Running website. There are a little dusty here and there from sitting in my closet but are in fantastic condition.