Peregrine Endurance -20°F Sleeping Bag | Extreme Cold Weather Synthetic Bag

Built for hard-use, cold-weather camping, the Peregrine Endurance -20°F Sleeping Bag is designed to perform when conditions are unforgiving. Whether you’re winter camping, base-camping, or outfitting a group for extended outdoor use, this bag prioritizes durability, warmth, and reliability over gimmicks.

 The Endurance series features a PFAS-free Teflon® coated 50D polyester ripstop shell, built to withstand years of repeated use in rugged environments. Inside, synthetic Perefill™ 3D hollow fiber insulation delivers dependable warmth and continues to insulate even when damp — a critical advantage for cold, wet, or unpredictable conditions.

 Cold-blocking design elements include a fully adjustable hood with independent pulls, articulated foot box, and hood, neck, and zipper draft baffles that help seal out heat loss. A large #10 YKK dual, non-locking zipper ensures smooth operation with gloves on and long-term durability under repeated use.

 While not designed for ultralight backpacking, the Peregrine Endurance -20°F excels in winter camping, group outings, outfitter use, and extended base-camp setups where warmth and toughness matter more than weight savings.

 Key Features & Benefits

•  Rated to -20°F for extreme cold conditions
• Synthetic insulation retains warmth even when wet
• PFAS-free Teflon® coated 50D ripstop shell for durability
• Heavy-duty #10 YKK dual zipper for reliability in freezing temps
• Adjustable hood with independent pulls for heat retention
• Draft baffles at hood, neck, and zipper reduce cold air intrusion
• Articulated foot box improves comfort and warmth
• Includes high-quality stuff sack for transport and storage

Technical Specifications

•  Temperature Rating: -20°F
• Insulation: Perefill™ 3D Hollow Fiber (Synthetic)
• Shell Fabric: 50D Polyester Ripstop (PFAS-Free Teflon® Coated)
• Liner Fabric: 20D Nylon Taffeta
• Zipper: #10 YKK Dual, Non-Locking
• Weight: 8 lbs 8 oz
• Packed Size: 15” x 20”
• Stuff Sack Volume: 33L
• Best Use: Winter camping, cold-weather expeditions, base camps, outfitter use