Rab Neutrino Vest - Men's The Rab Men's Neutrino Vest features a full YKK front zip and an internal insulated zip baffle to keep you zipped up safe and sound all day. Elastizied arm holes and hem draw-cord ensure you'll find the most comfortable and personalized fit. This vest comes provided with stuff sack for convenient travel purposes. 120 grams of superior quality European Goose Down will keep you warm in even the coldest of climates and harshest conditions of nature. The Neutrino Vest features two external pockets and one internal security pocket to fit all your loose items.