The women's Big Agnes Lithia Spring SL mummy sleeping bag features DownTek water-repellent down insulation. You'll never dread a rainy backpacking trip again. FILL. 700-fill duck down. WEIGHT. Regular - Right Zip: 3 lbs. 2 oz. Short - Right Zip: 2 lbs. 9 oz. COMPRESSED VOLUME. Regular - Right Zip: 8.3 liters. Short - Right Zip: 9.4 liters. TEMPERATURE RATING (F). 15 degrees (F)

• DownTek 700-fill-power duck down repels water employing nano technology and a proprietary process to apply a micro-thin polymer to the down
• DownTek down repels water and maintains loft and insulation value, even when exposed to moisture
• European Norm (EN) comfort rating of 15°F makes the bag suitable for 3-season use and occasional winter outings
• Proprietary application process creates a water repellent, antimicrobial and antibacterial down insulation that actually floats on water
• Vertical chambers with internal mesh gates keep insulation from shifting up and down
• Traditional style mummy bag is designed without the integrated pad sleeve (normally found on Big Agnes System bags) and features full insulation underneath
• European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags
• Ripstop nylon shell has a water-repellent finish to shed water
• Nylon taffeta lining is soft and breathable
• Down-filled collar at top seals around the neck to prevent warm air from escaping and cold air from entering
• Large draft tube located behind the zipper prevents warm air from escaping and cold air from entering
• Interior fabric loops stabilize a sleeping bag liner, sold separately
• 2-way, full-length YKK zipper zips to other bags of opposite configuration
• The women's Big Agnes Lithia Spring SL mummy sleeping bag includes a mesh storage sack and a nylon stuff sack