Helium Down Hybrid Hood | MenOur Helium range, has been a bestseller for over ten years! This hybrid hooded jacket is extremely lightweight and packable with stretch jersey panels and sleeves for freedom of movement. The main wind and water repellent fabric is combined with premium 90 10 down insulation, which makes for a jacket that thrives during chilly outdoor activities. All our down is responsibly sourced and fully traceable through the Track My Down program., with its