The Prism 2.0 is going to be in my pack for every cool or cold season hike this year. The jacket is well made and warm for its weight and bulk. The fit is trim and the hood is well sized. The sleeves are adequately but not over insulated and of a normal length. It has been a perfect top layer for moderate to high activity levels in the gusty wind and near-freezing temperatures of late fall on Adirondack summits. With a hard shell on top, it should be good for peak-bagging on a typical Adirondack winter day of 10 degrees with blowing snow.

Where haven't I been you mean! Up untill now I really had problems finding a light insulation piece that I could wear continuously in the fall/winter/spring without that whole stop/start regmerole. 40g Primaloft eco with a Pertex Micro outer is the perfect solution. I wear it climbing, hiking, working and I even wore it on a 1000 mile bike ride in the spring! Can't recommend it enough and in combination with the Flux as a belay jacket even better. Stuffs into its right hand pocket for a neat travel pillow. Sweet!

Never heard of the brand before, but pretty psyched I took a chance on it. Uses very nice materials, seems to be smartly constructed, and packs down very well. A great jacket for a cool spring or fall day or as an extra layer between laps in the backcountry. Great price for what you get!

I bought this for a one night summit of Mt Shasta and a 4 day backcountry trip in Yosemite. I was looking for an insulating layer to through over my softshell, which I did on Shasta, and it worked well. I wore it as a stand alone in Yosemite, and it got the job done there too. Kept me warm, slipped on and off easy, and packed down small.

The one caveat I would add is that both of these trips were a little warm. I don't think it dropped below 25 on Shasta and barely broke freezing in Yosemite. This jacket might be a little light for serious cold.