Neutrino Plus Jacket BLACK MARIN The Neutrino Plus is a box-wall design down jacket for extreme cold temperature. The Neutrino Plus was designed to fill the gap between the ever popular Neutrino Endurance jacket and the Summit Batura Jacket. This jacket is box wall construction with 275g/10oz of 800 fill European Goose down. The Neutrino Plus has a long torso for better core-body insulation, a helmet compatible hood, and the rip-stop Pertex® Endurance outer is highly weather resistant. This jac