Mountain Hardwear

Mountain Hardwear - Phantom Gore-Tex Infinium 0°F/-18°C

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  • Regular price $1,049.95

On serious alpine expeditions, your sleeping bag is your lifeline. The Phantom™ GORE-TEX INFINIUM -18°C is designed for trips where wet down and open bivies are not an option. An ultra-warm reprieve from frigid mountain conditions, it remains light and compressible for streamlined expeditions and alpine-style pushes.

  • Uses: Alpine Climbing
  • Imported
  • 850-fill goose down insulation for optimal warmth-to-weight ratio and compressibility
  • Phantom™ GORE-TEX INFINIUM 0F/-18C Sleeping Bag fabric is breathable, highly water-resistant, windproof, and ideal for severe conditions
  • Expedition mummy cut efficiently adds space to allow for gear storage in freezing temps
  • Lightweight but durable #5 zipper with anti-snag for easy entry and exit
  • Shaped draft collar blocks the escape of warm air from inside the bag
  • Oversized down-filled face gasket extends into the hood to comfortably block drafts
  • Contoured footbox follows natural foot position for maximum warmth and comfort
  • Vertical side wall baffles for added warmth and maximum loft
  • Glow in the dark, reflective zipper pull
  • Nylon compression sack and mesh storage sack included
  • Over-sized zipper draft tube prevents cold spots along the zipper
  • REGULAR SIZING: Fits someone up to 6’ (183 cm)
  • LONG SIZING: Fits someone up to 6’ 6” (198 cm)
  • 850-fill Goose Down RDS Cert/Fluorine Free
  • 3 lb 5 oz / 1460 g

Technical specs

Best Use
Tested Lower Limit
0°F / -18°C - ISO
Tested Comfort
13°F / -10°C - ISO
Temperature Rating (F)
0 degrees (F)
Temperature Rating (C)
-18 degrees (C)
Long - Left Zip: 3 lbs. 7.4 oz.
Regular - Left Zip: 3 lbs. 5 oz.
30-denier ripstop nylon
Zipper Location
Insulation Type
Goose down
Fill Weight
Long - Left Zip: 2 lbs. 1 oz.
Regular - Left Zip: 1 lb. 15 oz.
20-denier nylon taffeta
Sleeping Bag Shape
Fits Up To (in.)
Long - Left Zip: 78 inches
Regular - Left Zip: 72 inches
Shoulder Girth (in.)
64 inches
Hip Girth (in.)
58 inches
Stuff Sack Size
17 x 9.5 inches
Stuff Sack Volume
Long - Left Zip: 12.1 liters
Regular - Left Zip: 11.3 liters
Compressed Volume
Long - Left Zip: 12.1 liters
Regular - Left Zip: 11.3 liters
Contains materials that meet the bluesign® criteria, Down certified to the Responsible Down Standard (RDS)