Marmot built this bag with a tranquilizing effect, a.k.a. gobs and gobs of down. The 850-fill-power down is stuffed into an ultra-lightweight and water-resistant fabric and accented with a plethora of technical features, making the Women's Phase 20 one of our warmest bags yet.
Women's Specific Fit - More Insulation in Key Areas
Anatomical Wrap-Around Footbox Increases Insulation and Room for Your Feet, More Warmth and Comfort
Smooth-Curved Baffles Reduce Down Shifting. Nautilus Multi-Baffle Hood limits heat loss