Lost Ranger 3N1 0° Sleeping Bag

For cold-weather basecamp and backpacking trips where conditions can shift, the Lost Ranger 3N1 is our pick for campers who need one bag that does it all. The 3N1 system converts between a full mummy, wide-body, and top quilt, while 650-fill DownTek water-resistant down holds loft even when humidity or rain roll in. RDS-certified fill means the ethics match the performance.

• 3N1 configuration system lets you run it as a traditional mummy bag, open it to a wide-body fit, or unzip it fully into a blanket-style top quilt — one bag for three setups
• 650-fill RDS-certified DownTek down resists moisture absorption and maintains loft in wet or humid conditions without the weight penalty of synthetic insulation
• Available in Small, Regular, and Long lengths so you get a dialed fit without dead air space at your feet robbing you of warmth
• Built for cold-weather basecamp use and shoulder-season backpacking — rated to 0°F so you're not leaving warmth margin on the table when temps drop hard overnight
• Mercury/Tangelo colorway is easy to locate in a dark tent and holds up to the kind of hard camp use that fades cheaper bags fast