Outdoor Research Helium Bivy Sack, Pewter

May 29, 2017 - Comment
Add to Cart $168.95Amazon.com Price
(as of July 1, 2019 01:20 GMT+0200 - Details)

Made from the same fabric as our go-to ultra lightweight rain shell, the Helium II Jacket, the Helium Bivy is the most lightweight bivy we make, weighing in at a feathery 18oz. Featuring a classic, no-nonsense clamshell design, completely waterproof, breathable and ready for many seasons of adventuring–thanks to the 70D floor–the Helium Bivy is a true minimalist bivy for fast and light solo expeditions.

Product Features

  • Waterproof and Breathable
  • Lightweight
  • Fully Seam Taped
  • Anti-Fungal Coating on Floor
  • Five Stake Loops


Amazon Customer says:

Excellent- for what it is I would like to start off by saying I did not purchase this product from Amazon, but from REI. Second I would like to note the other reviewers complaining about the condensation in this bivy. You have to understand, this is a full coverage bivy, condensation comes with ALL bivies, and is not exclusive to this particular product. Now, for the actual review– 

Karlyn D Bunting says:

I love the Mosquito/Bug netting feature I just arrived home after using the Outdoor Research Helium Bivy Sack in the Grand Canyon for the last 5 nights. I love the Mosquito/Bug netting feature, it allows you to stay comfy while watching the stars at night without inviting the Daddy Long Leg spiders and other bugs into your sleeping environment!

philg says:

First the good news. It is very lightweight and packs very … I used this bivy during a multi-day backpacking trip on the Teton Crest trail. Weather was 70’s in the day and 45 at night. 

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