Whoops, sorry. Thought you were talking about the museum balmoral boot.
I can compare Rain D width to the standard Simpson width if that would help
Simpson is a great fit for me and so is the Rain D . . . . primarily width at the ball for the Rain
The Rain D does have a slightly wider heel cup than Simpson but not enormously so for me.
both are laceups btw : suede saddle shoe for the simpson & shell 2 eye'd derby for the Rain
If you are looking for a serious winter-time kick ass sole...commando is way better than dainite...which is why i think it makes more sense than a double dainite...double dainte would just give you some extra height....commando will give you lots of grip and make you impervious to any foul weather...much more useful in winter or in mud, etc. than dainite.