Ordered a size 9 1/2  M for my dad who is normally a 9W and has a high instep. He finds that 9 1/2 usually does the trick.. We went through a lot of shoes until we found one that he felt comfortable in. Right out of the box, he was happy with these. These are now his go-to shoes. He really preferred no laces, but he came up with a little trick in where he loosely tied each end of the lace and just slips his feet right in. His feet don't get overheated in these and he can wear them all day. They look just like the picture. Kind of a more dressy sneaker. Glad I took the chance with these.