The Mad River sleeping bag features down insulation with an ExpeDry treatment, which prevents moisture from absorbing into the down, helping to keep the bag lofty in all conditions. In the past, down sleeping bags tended to lose a significant amount of their insulation on long, rainy trips as moisture built up over time. There is a full-length zipper on the left side and a shorter zipper on the right, making ventilation effortless. You can even stick both hands out while staying warm inside the bag, allowing you to prepare breakfast without stepping out into the cold. Thanks to the down insulation, the bag offers an excellent balance between weight, packability, and warmth. - Regular size: suitable for users up to 168 cm - RDS-certified down fill - Fill amount: 750 grams, quality FP650 - Full-length zipper on the left and a shorter zipper on the right for easy ventilation and in-bag activities - Spacious footbox: prevents toes from compressing the down, reducing the risk of co