my arctic shield bibbs and parka feel like you're in a microwave at about 20° and they only cost about the price of one pair of sitka pants. nobody really needs sitka its more of a brand recognition thing kinda like everybody has to have a yeti. now if you were to be hunting in Alaska I might retract that statement but other brands make warm stuff too. you could slap a $200 price tag on a turd and someone would buy it simply because it cost $200