Women’s Norrona Lofoten Alpha Raw Zip Hoodie CUTE AND FUNCTIONAL TOO Polartec Alpha // Thumb Loops // Handwarming Pockets The Alpha Raw Zip Hoodie from Norrona is one of the best layers we have been able to find. This jacket is made from Polartec Alpha, a special fabric that was developed for the US special forces. Born from a, put it on and leave it on mentality, this is the perfect layer to have on when you know your heart rate will be changing a lot during the day. It keeps you warm when you are still and breaths great when you are working up a sweat. Tailored Fit Chest Pocket + Hand Warming Pockets Polartec Alpha TLDR: Excellent warmth to weight ratio in a highly breathable package.