I bought the black version, tried it out for size then bought the brown version.  The M width is wider than other brands and is similar to Dunhams 2E for example.  These are not only comfortable but also WATERPROOF.  If you live where snow exists or a lot of rain and don't like boots, this is a great feature.  So far, I don't even notice that they're on and I have some arthritis in my toes.  My  experience with Clark's is pretty good and I do buy other brands.  Ex., I had good experience with Nunn Bush Camerons (a heavy clunky but comfortable shoe) but their slip-ons hurt to walk in.  Hence, I bought these and am not sorry. To me, they look better than the picture (brown is a rich color but Amazon picture looks like dull brown) and are acceptable for business casual.