I'm biased to Arc'teryx anyway, but these really rock. Brought me to the top of Rainier and back in fine style. Breatheability and temp regulation is perfect, plenty warm for 15 degree 25MPH conditions. Best all around alpine pant there is. No need to go MX, - likely too warm and heavy unless you're among the most extreme or get cold very easily. Kudos to Teleman for layering with the icebreaker bottoms - I'd spoon with somma that's if my wife would let me.

Very good breathability and decent water resistance make these a good choice for ski touring; less comfortable without a first layer/briefs than my other softshell pants (Cloudveil Symetry) but less prone to snagging. Sizing is smaller than Arc'teryx hardshell pants; I normally wear a small and take a medium in these.

The Gamma AR is a very lightweight softshell. Great on warm days, and with my Icebreaker bottoms, it is warm enough on powdery days too. Plus they look better then any dress pants I own. Fit is quite true to size and a generous inseam. There is only a draw cord for closure at the boot, but not much snow seems to come in.