This sleeping bag features an innovative insulation technology. A DownWool® sleeping bag provides an exceptionally broad comfort range where you neither feel too cold nor too warm. Additionally, its insulation naturally resists moisture.
This is achieved through a patented blend of 70% RDS-certified down and 30% Alpine wool, which acts like a natural, lightweight air-conditioning system.
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Down: Exceptional Insulation
High-quality down offers outstanding insulation at minimal weight. However, it clumps when exposed to moisture (air, sweat, condensation) and loses its insulating capability. Grüezi bag solves this issue with innovative DownWool® insulation.
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Wool: Effective Moisture and Temperature Regulation
Wool keeps down naturally dry, preserving its insulation. It can absorb up to 30% of its weight in moisture and gradually release it outside. DownWool® maintains its insulation even in 90% humidity, as wool fibers expand when damp, increasing loft by up to 30% and enhancing insulation. Wool also prevents evaporative cooling and maintains warmth even when wet—something no other material can achieve.
The result: Excellent insulation, a wide comfort temperature range, and superior moisture resistance, making DownWool® sleeping bags versatile all-rounders.