The insulation you need when you need it. Senja Down Light W Jacket is an insulating garment designed with lightweight and packability in focus. This is the ideal jacket to stuff in your ski touring backpack and put on when the temperature drops. The Pertex Quantum® material is windproof and water repellent. The panels are stuffed with certified responsible down. The high protective collar and helmet compatible hood gives perfect protection to your neck and head. The shoulder and side seams are staggered backwards to prevent wear and tear and increase comfort when carrying a backpack.