The Norse Polartec® Performance Half Zip is made with 10.7 oz. Polartec® Power Dry® material and features Norse’s Wind Pro® with hardface material for added warmth and durability. Power Grid® material used on the side panel increase range of motion and garment flexibility. Its tighter-knit construction reduces the amount of wind chill, and its durable water repellent outer surface withstands moisture and rain – all while retaining breathability and comfort. his pullover provides 9.4 cal (CAT 2) arc flash protection, is NFPA 2112 certified, and meets the performance requirements of ASTM F1506. Norse Polartec Performance FR Half-Zip Pullover