A few years back I bought a Montrail Trail Action Parka. I have worn it mountain biking, hiking, hanging out, etc. This layer is amazing. On high output cold days it can be an outer layer. Chilling around the house it can be a super comfortable hoodie. But back on the side of a mountain it is just as great a layer.
I like this fleece so much I bought a second one in green! A few of the features are two side pockets and a napoleon pocket.
The hood and collar provide so much coverage it is amazing.You can skip a balaclava in most conditions because of the ninja hood.
Why I love fleece is many-fold it can be worn alone, under a coat and is not as delicate as down or superlight coats. No concerns about bashing through trees and tearing it or any special washing instructions required. This fleece is pretty great. Warm without bulk and very breathable.
Montbell Says: http://www.montbell.us/products/disp.php?cat_id=2005&p_id=2306485&gen_cd=1
With an athletic cut and 4-way stretch, this hoodie lends itself to activities centered on inertia. It can keep you warm and comfortable in whatever mode you choose to enjoy the local backcountry. Constructed from our CLIMAPLUS™ Stretch fleece, the Trail Action Parka provides great breathability and excetional freedom of movement. This piece makes for a light mid-layer under a hard shell or a toasty base in colder winter temps.