Another home run from Arcteryx! I love their fit and finish and the Thorium AR is no different. I have found that it is 95% windproof and warm to 20F plus wind as a stand alone jacket. The Thorium plus my Alpha SV = bombproof. One design feature I'd like to add would be cinch cords for the hood for added protection. But this is for city wear so I'm more than happy with the set up. It packs down to
This review was written in the old system and had content requirements that are different than reviews written today.