Oscar -2° Curve is a very light sleeping bag considering the level of thermal protection it provides. It is updated with the Curve shape by Nordisk. The Shark-fin foot box has also been updated and now features the envelope ventilation for easy nightly thermal regulation. The bag has an extremely soft and comfy feel due to the choice of premium materials like ultra-fine 7D Rip-stop Nylon and ECO friendly 100% recycled synthetic filling made from recycled PET bottles. The 3D shaped hood provides added warmth on a cold night.