Built for versatility and comfort, the Big Agnes Anthracite 30 is a lightweight, all-gender mummy-style sleeping bag ideal for everything from summer backpacking trips to backyard sleepouts. With FireLine Pro Eco recycled synthetic insulation and a PFAS-free water-repellent coating, this bag keeps you warm and dry while minimizing environmental impact. The traditional mummy design traps body heat efficiently, while thoughtful features like a contoured hood, no-draft collar, and two-way anti-snag zipper make for a cozy night under the stars. Whether you&';re on the trail or at the campsite, the Anthracite 30 delivers lightweight performance with sustainable materials and comfort-first design. Features: Eco-Friendly Warmth - Insulated with FireLine Pro Eco recycled synthetic insulation for reliable performance and compressibility. PFAS-Free Water Repellency - Shell and lining fabrics feature an eco-conscious moisture-repellent finish. Mummy-Style Shape - Offers lightweight packability and maximized heat retention. Comfort-Focused Hood - Contoured hood and low-profile cordlock adjust easily for a snug, draft-free fit. No-Draft Construction - Oversized collar, zipper draft tube, and cinchable upper hood opening seal out cold air. Smooth Zipping - YKK #5 two-way, anti-snag zipper with garage allows for easy in-and-out access. Zip-Together Compatible - Left zip (All-Gender) mates with right zip (Women&';s) bags for shared warmth. Interior & Exterior Loops - Attach a liner (sold separately) or hang to dry or store with ease.