A high-performance sleeping bag for expeditions in extreme conditions. It's the most robust and best-insulated sleeping bag in the roc series. We've designed it to keep you warm and dry in any environment, while providing an excellent warmth-to-weight ratio, perfect for long journeys. It features a lightweight, breathable, and water-resistant shell filled with hydrophobic down. The trapezoidal baffle construction maximises thermal performance without adding extra weight. It has a mummy-shaped hood and a narrow, anatomically designed foot that prevents cold spots.Key featuresthe pertex quantum pro outer shell offers excellent water resistance while remaining soft, lightweight, and breathable.The soft and durable pertex quantum inner shell enhances insulation efficiency.Filled with 1,050 grams of hydrophobic down with a fill power of 800.Anatomically designed mummy hood with full baffle thickness.Spacious mountain cut that is thermally efficient.Trapezoidal baffle construction m...