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Efficiently designed for reliable warmth in zero-degree weather, this premier mummy bag delivers comfort at an incredibly low weight. Our 650-fill natural ProDown™ features a water-resistant finish to absorb less water and dry faster than traditional down.


Water Resistant
Water Resistant

Partially blocks rain/snow to increase breathability.


High-fill power goose down ranging from 550 to 900 fill, the highest quality commercially available.


Insulation traps hot air for reduced heat loss and increased warmth.


  • Premium, 0-degree ProDown™ bag delivers incredible warmth at a low weight
  • 650 fill ProDown™ for better performance in adverse conditions
  • Anti-compression pads for better insulated performance
  • Compression optimized fill schedule for a smaller packed size
  • Shaped hood for more warmth and comfort
  • Draft collar for comfort and to prevent heat loss
  • Pad loops for attaching the bag to a sleeping pad
  • Compression sack and storage sack included

Product Specifications

Temperature Rating:
0°F/ -18°C
En Lower Limit:
3°F/ -16°C
En Comfort:
16°F/ -9°C
650 ProDown
Fill Weight:
Short: 1 lb 11.1 oz (768 g) Reg: 1 lb 13.3 oz (831 g) Long: 1 lb 15.6 oz (896 g)
Total Weight:
Short: 3 lb 3 oz (1446 g) Reg: 3 lb 6 oz (1531 g) Long: 3 lb 9 oz (1616 g)
Compressed Volume:
Reg: 610 cuin (10 L) Long: 669 cuin (11 L)
Stuffed Volume:
10" x 19" (25.4 cm x 48.3 cm)
Fits Up To (IN.):
Short: 5' 6" (168 cm) Reg: 6' (183 cm) Long: 6'6" (198 cm)
Shoulder Circ:
Short: 60" (152 cm) Reg: 61" (155 cm) Long: 62" (157 cm)
Hip Circ:
Short: 54" (137 cm) Reg: 55" (140 cm) Long: 56" (143 cm)