The L1 Aftershock Insulated Jacket has the warmth you need for the frozen backcountry tundra. 2-Layer micro ripstop fabric provides 10k waterproofing and breathability with critically taped seams to keep you dry. A side zipper makes for easy on and off and doubles as an underarm vent to keep you cool while hiking or shoveling. The snap away powder skirt attaches to your snow pants, and the stretchy wrist gaiters easily slip over or under your gloves.
Critically Taped - On outerwear with critically taped seams you only have taping at the key points where potential leakage can occur. This is acceptable, or even advantageous if you live in a dry climate, if you're more concerned with breathability than dealing with wet weather then outerwear featuring critically taped seams is the way to go.
Polyester Fill - Polyester insulation may not be as warm or light as down, but it's far easier to clean and performs better in wet conditions. If cost is a concern or you live in a wet climate then polyester insulation might be your best option.
Synthetic insulation is measured in grams, so a jacket with a 80g rating simply means that a 1 meter by 1 meter piece of that particular jacket's insulation weighs 80 grams. The higher the rating, the warmer the outerwear.
Jacket to Pant Interface - Connect your jacket to your pants for better protection from the elements.