I've been wearing Sperrys for 40 years and now have two leather pumps and two sneakers. I bought these because I wanted another pair of sneakers in navy blue and was pleased that they come in 9W just like the other two pairs of sneakers I own. Well, Sperry's size doesn't add up here. Damn, these Ws are really wide and I can't imagine how many meters it would take to fit the M size because it was impossible to even fit on them. Closely. If you wear a W and want Sperry sneakers, stick with the Halyard and Striper II CVO. These are real W comforts.