I'm not a delicate flower, and I tend to just jump in and do shit, instead of going home and changing into "the right clothes" first.
So I have worn Carhartt for years. But they have the same size problems (generally) as most clothing manufacturers. When you get bigger sizes, all they are is scaled up proportionally. So if you are a fat dude, and buy a shirt that goes around your middle, the arms hang down to your knees.
Duluth stuff actually fits human beings that are not models. And it lasts well. And has fantastic utility... like reinforced waistbands, deep pockets, and pockets of logical size/location.
I'm a Duluth guy now. Depending on how the weight loss goes, I may become more of a Carhartt guy again, but I just like that Duluth makes stuff for real people.