Helium 300 4 to -1°CMinimise your load on your next bush walk with a Helium 300 sleeping bag. Outstanding warmth in an ultra compact package ideally suited to cool weather, three season camping in temperatures as low as 1C. New shell fabric and down fill on the latest Helium production mean higher performance and less weight than ever. Durable 10 by 10 denier, 520 thread count Nylon weighing only 26g m2 with a hot rolled cire treatment to prevent down leakage and