I feel their pain. I am 6'4" 255-260 on average. I have 54" chest so "losing weight" doesn't help in my shoulders, long arms, long torso, large boned normal size guy. LOL! Heck I wear size 16H Irish Setter Elk Trackers $$$$ which are about only ones I can wear due to 15 5E gun boats. I've had some luck with recent Military camo at on line stores. I am so far outside the 95% that a new % should be created just for me! Even socks are difficult to find for hunting. Wigwam use to carry XXXL hunting socks but no more. Wide said she would take wool blanket for me to use.
There is not even a special order service hardly anymore even if you could actually talk to someone these days. The call tree alone is enough to make you avoid calling.
When I do find something I buy enough to last a few years. Just afraid it won't be available anymore in future. I know, clothing hoarder!