The Marmot Lost Coast Long sleeping bag transforms your backcountry adventures by delivering serious warmth without the bulk that keeps you tied to your car. Rated to 15°F/-9°C and designed for sleepers up to 6'6", this backpacking sleeping bag combines RDS-certified 600-fill down with Down Defender water resistance treatment to keep you cozy even when conditions turn damp. The 100% post-consumer recycled ripstop shell proves you don't have to choose between performance and planet-friendly gear, while the anatomically designed footbox and draft collar work together to trap every degree of precious warmth. Whether you're establishing a weekend basecamp or switching campsites nightly on a multi-day trek, this three-season to winter sleeping bag packs down small enough for your backpack yet opens up roomy enough for a comfortable night's rest – because the best adventures happen when you can venture beyond the parking lot.