I bought this primarily to serve as a heavy mid-layer for layering on very cold days. It's an excellent fleece that is of comparable weight as Patagonia's R3 line. I like the styling and its admittedly slim fit. It's certainly not windproof but I think it's very warm and have been comfortable wearing it over a T-shirt in calm 40+ degree weather.

The description on the right side is not correct. I just bought this fleece, and it's actually lightweight, not heavyweight as they've listed it. Also, there is only ONE pocket on the left sleeve. Not 2 front/2 back as the website describes. If you look at the men's version of this fleece, the description there is more accurate.

I recently used this jacket for a ski trip to Utah, where the temperature ran between the high 20s in the morning and the mid- to high-40s in the afternoon. It performed excellently under those conditions and is especially versatile because of the underarm vents that allow for more temperature control. This is my first Arc'teryx jacket and is consistent with all the pluses and minuses I've read about them -- very light, extremely windproof but also very bare in terms of functionality. There are enough pockets for me -- partly because I use a backpack to carry goggles and other extras -- but I would love a sleeve pocket for my lift pass. My only other vague quibble is that because of the way the non-detachable hood is attached to the jacket, it looks best when the jacket is more or less fully zipped (like in the pictures); otherwise, it tends to flop around a little. A small aesthetic issue for what is otherwise an excellent jacket. I'm off to Colorado soon and can't wait to use it again.