When the trail leads beyond your car and into the backcountry, the Marmot Lost Coast Sleeping Bag delivers the perfect balance of warmth, weight, and packability for serious backpackers. Rated to 15°F/-9°C, this mummy sleeping bag features RDS-certified 600-fill down insulation with Down Defender treatment that maintains loft even when moisture creeps in during those unpredictable mountain nights. The anatomically designed footbox wraps around your feet to eliminate cold spots, while the draft collar seals in precious body heat where you need it most. Built with 100% post-consumer recycled polyester shell and lining, this eco-friendly sleeping bag proves you don't have to choose between performance and environmental responsibility. Whether you're setting up a basecamp for weekend adventures or moving to new trail sites every night, the Lost Coast's lightweight design and compression sack make it the ideal companion for cold weather backpacking when every ounce in your pack matters.
