If you're on a deserted alpine face or snowy couloir
... this is the one piece I'd always bring. For doing anything active, climbing, ski touring, mountain biking, Outdoor Research designed this piece for active folk. I used to wear a light weight wind shell that breathed like a garbage bag. Even though this piece is slightly heavier, the Ferrosi keeps the wind out, the rain/snow/sleet off and breathes like nobody's business. When your partners stop to strip off layers, you're still moving nice and easy. Get to the top and a little weather coming in? Just pop the hoody. I'd recommend the hooded version for that reason, my non-hooded stays in the closet. And the Spring '12 diablo color is easy on the eyes and easy to spot.