I got this as a replacement for my office shoes that are falling apart. I freaked out after reading the reviews saying that these were large fitting and to order up however the 8.5 M fit me perfectly. There is one odd thing about this shoe and that is that the inner padding ends under the ball of my foot and not right up to the front of the shoe as is customary and this may become painful with all day use. The shoe is a bit stiff so I am hoping they will soften with everyday wear.