If you are an experienced backcountry camper or ski tourer who is looking for a super lightweight bag the Mont Helium 680 Down Boxfoot Sleeping Bag is an ideal choice.

The Helium 680 is the warmest model in the Helium series suitable for temperatures as low as -12°C. Ideally suited to cold weather and four-season camping including use above the snowline.

Ultralight shell fabric and high-loft down fill on the Helium bags mean higher performance for less weight. Durable 10 by 10 denier, 520 thread count Nylon weighing only 26g/m2 with a hot-rolled-cire treatment to prevent down leakage and increase durability. Premium 800+ loft white down fill with DWR Loft treatment adds greater resilience, higher loft and better warmth in damp conditions.

While the Helium 680 is rated to -12ºC, it is for the experienced alpinist. If you a cold sleeper or just starting your alpine journey we recommend the Brindabella XT.