OK, so there been many Oakley, HH etc sizing questions, so why not make a list of how big brands run?
I'll start then.
Helly Hansen: Park stuff is a normal to maybe a bit big sized but they're big mtn "hi tech" stuff has a slimmer fit, jackets are very various in length, had the Access jacket in L and I was 5'10 and it barely covered my butt..
686: Much of their stuff fits baggy, but I had an L Kings pant and it got on the smaller side length wise (I was 5'10 when I had it.)
Saga: Big, baggy, massive, long and wide, more?
Norrøna: Their top line fits very baggy, (6 feet, tried on a XXL, it was huge. Very baggy) their lower end stuff is normal sized, maybe a bit on the smaller size.
Sweet: Not very baggy but still big enough (for some of you).
Fill on with brands you have tried on/own, and it's size and your height.
But keep it serious.