Shifty, I would recommend a parka length rather than a jacket, I can't handle that cold wind going up my spine when I bend over.
Breathable "goretex or equivalent" waterproofing is a must have for me.
A quiet fabric, the kind of collar that zips all the way up wrapping around the neck, and a detachable hood, lots of pockets inside, and two big pockets as well as hand warmer pockets on the exterior. Draw chords that can be adjusted for a loose or tight fit around the hem.
How to handle thermal swings in weather, and versatile styles of one parka hunting:
Don't buy to fit, think in terms of LOOSE for the parka and about 200 grams of insulation. You need it to fit loose so you can wear layers of fleece jackets and vests under the parka. This will work for being in a stationary whitetail blind in sub zero Alberta in late November. For warmer weather or more active hunting and climbling you don't need as many layers or if it warms during mid day, you can put your parka in or tied to the back pack and just wear one of your fleece jackets.
Cabela's has some pretty good parkas'
Happy Hunting
