Outdoor Research - Helium Emergency Bivy

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Outdoor Research - Helium Emergency Bivy

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Stock #: HMY4Z-

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Turn your 3-season sleeping bag into a 4-season bag by layering it with the Helium Emergency Bivy. Just like how you'd put a hard shell over your puffy jacket, this bivy was designed to protect your sleeping bag from the elements while trapping in warmth. Built with the best-selling, award-winning Helium fabric, this ultralight shelter system uses a simple tube-like construction and cinch closure to seal out wetness and save on bulk. Weighing in at an undetectable 9.6 ounces and packing down to the size of a beer can, the Helium Emergency Bivy is perfect for adding warmth and peace of mind to your backcountry sleep setup.


  • Water-Resistant
  • Breathable
  • Ultra Lightweight
  • Critically Seam-Taped
  • Drawcord Opening Closure
  • Packable
  • Reflective Logo
  • Fabric: Pertex® Shield 2.5L, 100% nylon, 30D ripstop

Additional Information

Shelter Type Bivy
Season 4 season
Floor Dimensions 36" x 84"
Trail Weight 9.3 oz/264 g
Packed Size 5.5" x 2.75"
Collection New Arrivals


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