Helium Down Hood Jacket MOur lightest and most packable down insulation. Ideal for low to mid intensity activities in dry conditions. Our Helium range, with its iconic quilt pattern, has been a bestseller for over ten years! This hood jacket is extremely lightweight and packable. The wind and water repellent shell in combination with the premium 90 10 down insulation, makes this great for any outdoor activities. Wear it as an outer layer or under a shell jacket for extra