I'm far from being an expert skier, despite skiing expert runs at ski areas. I'm at that point in my skiing where it takes a lot of time on the snow to see much in the way of improvement. Fortunately, I got to see, rather, experience, the fruits of my efforts over the past few years since moving to Colorado. While I was still the weakest skier in the group of outdoor and primarily ski journalists on this trip to Jackson Hole I was able to keep up and even enjoy myself. The trip was organized and sponsored by Marmot with some help with Polartec. Marmot was using Polartec's new breathable insulation technology called Alpha. The idea is to be able to be working hard in the winter and dump the excess heat your body creates to avoid overheating and sweating which can be a problem once your body starts to cool off. On the other hand, as you do cool you want your layers to be right to keep you warm enough. Usually this involves stripping and adding layers as you change your activity on the mountain. I've been using an Eddy Bauer jacket with Polartec Alpha most of this season and it has been great. The Marmot kit did really well though it could have been colder out to optimize the feature of the technology.