Experience ultimate versatility and all-season warmth with the Big Agnes Lost Ranger 3N1 0 Sleeping Bag. This innovative 3-in-1 sleep system features a layered design with a fully insulated mummy bag and a lightweight inner bag that can be used together or separately. Packed with premium DownTek water-repellent down, it delivers exceptional warmth in temperatures as low as 0°F while maintaining packable, lightweight performance for backpacking and cold-weather camping.

Key Features

3-in-1 Modular Design – Use the outer bag, inner bag, or both together for customizable comfort across seasons.
0°F Temperature Rating – Built for extreme cold and winter camping conditions.
DownTek™ Water-Repellent Down – Stays warm even when exposed to moisture.
Roomy, Comfort-Focused Fit – Offers more space than traditional mummy bags while retaining excellent heat efficiency.
Lightweight & Compressible – Packs down easily for multi-day hiking and backpacking trips.
Pad Integration System – Keeps your sleeping pad securely in place for a stable, comfortable sleep.
Durable, High-Quality Construction – Designed for rugged outdoor use and long-lasting performance.