Excellent quality boots. Unfortunately, people who have to wear these boots are hard working stiffs and we usually have wider feet just like we have bigger hands and banana fingers!
I spoke to Baffin in Canada and was told this is what the US market demands like their US customers Amazon.com and affiliate Endless.com and they don't make them wider. I checked out many sites for other brands. Nothing comes close to the quality or price. Most other brands are also regular "M" width!
LaCross boots are generally wider, but the quality is so bad that every pair I ever owned has split open after a few months of use.
Be careful ordering Baffins as they come in B series "M" wide which is even narrower than the D series "M" wide. I love them though!
I discovered my right big toe was always wet and found out the right-foot boot leaks at the toe, but having had them for several months, can't return them.