This bag is hotter than ever. Seriously. The restyled Cosmic 20°F sleeping bag now has the exceptional warmth of 600-fill hydrophobic DriDown™ for higher performance. That means more moisture defense and quicker drying in the cold and wet. Versatile enough to use in 3 seasons, with great features like a thermal comfort hood and top draft collar, it’s a no-brainer for backpackers who love to be outside in rain, snow or shine.