Marmot Mad River 30 Short Sleeping Bag Sleep Well Out There Cold nights on the trail demand a bag you can trust, and the Mad River 30 Short delivers. The down fill is treated with Expe Dry, a permanent, chemical-free treatment that helps it dry fast and hold its loft when condensation or humidity creep in overnight. The short cut keeps it trim for smaller-framed sleepers, and the recycled nylon ripstop shell means you're not paying any weight penalty for doing the right thing environmentally. Add a dual-zipper setup for dialing in ventilation and a draft collar that locks in warmth when you're tossing around, and this is a bag that earns its spot in your pack for three-season backpacking. Features RDS-certified 650+ fill-power duck down with Expe Dry permanent, chemical-free treatment keeps loft and drying performance in humid or damp conditions100% recycled nylon ripstop shell and lining reduces environmental impact without adding weight Full-length left-side 2-way zipper with anti-snag slider plus short right-side zip precise ventilation control and easy entry in any sleeping position Anatomically designed wraparound footbox, draft collar, and internal stash pocket keep feet warm, seal heat around your neck, and secure a headlamp or contacts close at hand | Marmot | Mad River 30 Short Sleeping Bag | Nylon