The PFC-free synthetic fiber sleeping bag is the solution for trekkers seeking comfort and an optimal warmth-to-weight ratio. Elastic chamber seams keep the synthetic sleeping bag close to the body. It can stretch up to 25% in width, providing plenty of freedom of movement while ensuring it warms up quickly, as the sleeper has to heat up less air. The new contoured functional hood reliably envelops the head, and the raised, diagonally cut foot area adapts perfectly. New materials ensure a pleasant and quiet sleeping environment.