Outdoor Research Helium Bivy - Moosejaw
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Outdoor Research Helium Bivy

Outdoor Research Helium Bivy is rated 4.2 out of 5 by 19.
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4.2 Star Rating
$148.99   $199.00
up to 25% off

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Product Description
Item No.   10560725

The Outdoor Research Helium Bivy is a room for one in the outdoors. Seriously, you're only going to fit yourself and your sleeping bag, but the weight savings will make it worth it. Forget the tent and bring along this instead, the Pertex Diamond Fuse technology provides waterproof, breathable performance when the rain falls through the night. It's easy to enter and exit via the clamshell opening, plus the No-See-Um mesh allows for breathability without the bugs when it's drier out or you're combining with a tarp. A seam-taped shelter you can count on when moving fast through the outdoors.

Eco-friendly Materials
Waterproof Materials and Construction

FEATURES of the Outdoor Research Helium Bivy

  • Waterproof
  • Breathable
  • Ultralight
  • Fully seam-taped
  • Durable
  • No-see-um mesh
  • Single-pole system
  • Reflective logo and trims
  • Two stake loops
  • One guy line loop
  • High volume toe end
  • Clamshell opening, two internal fly fasteners

Fabric Details

  • Bluesign approved, pertex shield diamond fuse 2.5L 100% Nylon, 30D ripstop upper
  • 100% Nylon, 40D with TPU lamination floor
  • Bluesign approved, 100% Polyester mesh

Product Specifications
Features: Waterproof, bluesign Approved, Ultralight
Sustainability: bluesign Approved
Sleeping Bag Shell: 100% Nylon
Sleeping Bag Lining: 100% Polyester Mesh
Waterproof: Yes
Type of Waterproofing: Fully Seam-Taped
Eco Friendly: Yes
Disclaimer: We only ship this brand to US Addresses.
Gender: Unisex
Best Use: Camping
Pertex Shield

Pertex Shield
Pertex Shield offers balanced wind and water protection and excellent durability due to a breathable microporous waterproof coating. This provides exceptional comfort and reduced condensation.

Check Out All Shield Products >

Product Reviews
Rated 4 out of 5 by from As advertised This recently arrived for me and is definitely what I’ll be using backpacking. I’ve been using a tarp so far, so I’m excited to have the extra bug and water protection
Date published: 2023-04-25
Rated 5 out of 5 by from Been around bur recently recognized as the New Standard I have the previous version, the "heavier" 18 ounce one. The review should cover 95% of what the new one is, with the exception of the newer, similar material and the even lower weight. What can I say? I like to hike from dusk to dawn. The last thing I want when I get to camp is to have to fiddle with poles, guy lines, stakes, site finding, etc. For a U/L 3 to 4 day trip, like the ones I do, or even for the Hyperlight thru-hiker crowd, this is where is at. TOTAL Weather protection, I have even used this in Winter Conditions on the AT without any problems. If you hang your food bag, your small pack will fit at the bottom or spread around near the head in the corners. I usually leave the shoes outside semi-covered in a bag. If you are a dude bring an empty 32 oz Gatorade to be used as a pee bottle, it works! You barely need to stake it out or guy it. I sometimes hike with a tarp-poncho combo (if rain dumps are in the forecast) and use it as a vestibule at the head by triangulating the 2 hiking poles with a little clip atop the Helium's semicircular pole at the head. You can then proceed to guy/stake out 2 corners of the now tarp away from the head. The only thing I could wish for, and no, it is not a negative, is if they made a more squarish-footprint version so that I could maybe fit something like a 25 inch wide Nemo Tensor. In the morning just wipe it down a bit, mostly on the outside and pack it away. That's it. Less time housekeeping, more time hiking and sightseeing. Last but not least, you can throw it inside a shelter for more comfort. I mean, with some pads being 25 inches and the front to rear dimensions being rather irrelevant in this case, who the is going to complain that you have mice protection and they don't?
Date published: 2023-04-13
Rated 2 out of 5 by from Condensation soaked through overnight into sleeping bag I was disappointed with this bivy on first use as it was described as waterproof and I loved packing lift but condensation overnight completely bled through onto the sleeping bag making sleeping in cold weather miserable. I was hoping this would hold up in Poot weather situations but I couldn't handle even humidity.
Date published: 2022-11-06
Rated 5 out of 5 by from So far so good Having spent 6 nights in the bivy both in wet/cold conditions it preformed very well keeping my sleeping bag dry. I found it best to augment this bivy with a small tarp/footprint and an SOL escape bivy sack for additional warmth and water proofing. When in a solid down-poor I fixed a lightweight tarp over the bivy stop rain from directly hitting it. The outside of the bivy was wet and or puddles were forming on top, but my sleeping bag was dry. I feel like bivys get a bad rap for being too small, damp, or just not enough for the elements. If you know what you'er getting into though this can be a very great sleeping system.
Date published: 2022-10-02
Rated 4 out of 5 by from Light and Comfy - Needs stake-point reinforcement. It is light and I was comfortable. The stake points need extra reinforced stitches, they ripped easily, both of them and I'm a little bummed about that. I understand it's meant to be light, but it came apart easily. I would try to return it, but I still need it for current/upcoming UT, WY and CO hunts and don't want to be without one. It is lightweight and roomy comparably to most Bivy sacks and I'm 5'11/ 200 lbs. The zipper's are good and so far the material seems legit. I paired this with an ultralight sleeping pad & lightweight tarp/550 cord system to keep the rest of my gear dry. It did help get my whole "sleep/camp system" down to under 7 lbs. including sleeping bag (heavier synthetic, not down). Lastly it isn't as "free-standing as it looks in the photo, a string must be tied to something above to get it to stand like the image. I'd give it a 5 star if the stake points didn't easily tear on my first use.
Date published: 2022-09-15
Rated 4 out of 5 by from Early impressions After a few nights out- I may recommend one of the models with the pole farther back towards the top of your head. It’s okay and did the job when called upon, but may not be as well designed as other OR models.
Date published: 2022-09-07
Rated 1 out of 5 by from Poor design Two seasons in with over 90 days each year as my fire line shelter, and I'll echo the other reviews here. An utter and total lack of structure makes this bivy a big disappointment. Easily buffetted by winds, claustrophobic, hot and seriously lacking in any real water resistance. The Helium trades on OR good reputation but is a poor product. Save your money, it fails to perform as anything but a saggy sauna.
Date published: 2022-08-09
Rated 2 out of 5 by from Serious design flaws compromise product This product has some serious design flaws that have been pointed out in numerous online reviews. Highly unfortunate as some basic design improvements would make this product a far superior item with minimal change or investment from OR. A summary of design flaws: 1) There are only TWO guyline loops. Why on earth would OR limit this number for such a minimal amount of additional sewing? The lack of guyline loops results in the inability to keep the bivy taut, shed water, reduce flapping and most important, keep the head loop sturdy and in place. There should be loops at each corner to secure it during heavy winds. 2) The bug mesh does not stay taut as shown in display images. It sags and there are only two attachment points to keep the mesh away from your face. Four attachment points would have been ideal, however, the bigger issue is that the inability to keep the loop and general bivy material tight, results in a loose and flappy bugscreen that sits on your face and head and allows you to get massacred by bugs all night. A simple fabric management improvement would have resolved this issue. 3) Breathability is still lacking. Any meaningful difference in temperature between outdoor ambient and inside the bivy will result in substantial moisture build-up. Because it is impossible to keep the bivy material taught due to the lack of guyline loops, it sags and sits on your sleeping bag resulting in meaningful water penetration if you are not using a synthetic material. We are talking dampness as though you got rained on all night in light showers- very dangerous in the wrong situation. A water-resistant zippered ventilation flap could have helped this issue substantially. On nights when there is a breeze and its not raining, this flap could have helped circulate air flow and stop the stagnation of air inside the bivy. Even if the bug screen is used throughout the night, it does not allow for sufficient air flow to reduce the condensation build-up. OR can do better
Date published: 2022-08-02
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So how much does this thing weigh?

Asked by: Girthman
Hey there, thanks for your question. The Outdoor Research Helium Bivy weighs just under a pound at 15.8oz. I hope this helps!
Answered by: Gator
Date published: 2022-11-06
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Size Guide