The Neutrino Pro Down Jacket is built for extreme cold in alpine conditions. It features Pertex® Quantum Pro fabric for durability and a Pertex® Quantum lining for all-day comfort. Insulated with Nikwax hydrophobic European goose down to resist moisture. The helmet-compatible hood provides extra protection in strong winds. Zippered pockets offer secure, easy access, with the left front pocket doubling as a stuff sack.