I don't know how big you're talking, I'm 6'4 and 260 lbs. I get irritated by many of the outdoors clothing lines running all their sizes small.
Traditional hunting clothing (Filson, Cabelas, LL Bean) I wear an xl or 2xl max. I need to go 3xl on sitka to fit, really? Plus no tall sizes. A lot of the pre Bass Pro stuff from Cabelas was pretty good and offered in talls, but like most everything else J Morris screwed that up. I will continue to support LL Bean and others who make clothes in tall sizes rather than retailers who size goofy and don't offer talls, only chasing the bottom line without extensive sizes.