When we're trekking through the mountains, we need to stay light to handle the arduous trails, but we also need to stay warm through the frigid nights. Offering the highest warmth-to-weight ratio of any bag in Rab's line, the Mythic 600 Sleeping Bag is here to help. This lightweight bag delivers an incredible amount of warmth in a very compact size to keep you warm through below-freezing nights at high altitudes.