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Why We Like The Helium Bivy
Tipping the scales at just barely over a pound, the Helium Bivy is what we grab to move fast through alpine terrain and wilderness expanses without excess weight slowing us down. The Helium Bivy offers total waterproofing and maximum breathability with its Pertex Shield+ 2.5-layer membrane, TPU floor lamination, and fully taped construction. Ultimately, this means you stay pleasantly dry when you're camping out in widely variable conditions, all without soaking in a sauna during humid summer months.
Details
- Ultralight bivy boasts phenomenal weather protection for backpacking
- Pertex Shield + is reliably waterproof and comfortably breathable
- Clamshell opening is easy to get in and provides plenty of space
- Delrin single-pole system with two stake loops and one guy line loop
- Internal straps for sleeping pads
- Item #ODRZ8NC
- Material
- [membrane/laminate] Pertex Shield+ (2.5-layer), [upper] 30D nylon ripstop, [floor] 40D nylon with TPU lamination, [hood lining] no-see-um mesh
- Poles
- 1
- Pole Attachment
- Delrin single-pole system
- Ventilation
- no-see-um mesh
- Seams
- fully sealed
- Interior Height
- 19.5in
- Floor Dimensions
- 26 x 87 x 20in
- Floor Space
- 82 x 26 - 19in
- Packed Size
- 12.25 x 3.5in
- Trail Weight
- 15.8oz
- Packed Weight
- 16.8oz
- Activity
- backpacking
- Manufacturer Warranty
- lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
4 based on 15 ratings
Review Summary
Customer Images
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Selecting an option will reload the available reviews on the pageAugust 26, 2025
I keep one in every vehicle
I have a few of these boys although not as rugged as the alpine which I carry with me in the back country, it is really light and packs down easy for assurance when you might need it. Part of my 10 essentials for a day hike or to keep in my vehicle for backup.

Originally reviewed on ExpertVoice.com
August 25, 2025
Good Cold Weather Bivy
Good for cold weather, tested this out on the AT the other weekend and it was good, the pole is a little flimsy and gets annoying trying to keep it up right. Not good for mid weather climates gets really muggy inside and the condensation builds up over time. Overall great product and lightweight will be using this product!

Originally reviewed on ExpertVoice.com
August 17, 2025
Field tested, field approved
Bought this for my Marine Corps infantry field ops, and it has not disappointed. It’s lightweight and low profile save space in my pack and allow me to bring more operational essential equipment. There’s a small issue with the condensation on a humid night but if you’re in your woobie or a light sleeping bag you won’t feel it and every time I’ve packed it up wet, by the time I’ve unpacked it for the evening it’s been dry. The different zippers for having an accessible mesh bug net or a completely enclosed bivy are money for those hot humid nights or chilly mornings. I compared it to the issued USMC bivys and they’re roughly 1/3 the width and 3/4 the height.

Originally reviewed on ExpertVoice.com
August 14, 2025
Sweetness
This is the only bivy ive ever used but it was great. The pole helps keep the material off your face when zipped up and bug net is a great touch. I did get extremely closterphobic the first time I zipped in, but thats a me problem and the zippers are easy to find and use. The only thing that could make this bag better is if there was a zipper on the side to take a leak from in the middle of the night, as the shimmy out of the bag and bivy takes some time and effort lol. Used it on a moto camping trip (with great weather luckily) and looking forward to more UL missions with this setup.

Originally reviewed on ExpertVoice.com
August 8, 2025
Packs down extremely small and fits me well at 6’2

Originally reviewed on ExpertVoice.com
August 4, 2025
this bivy does not has only support pole! the bivy collapses around you. Overall I should have done more research instead of relying on OR's reputation for producing quality well engineered equipment. This one is headed to goodwill.

Originally reviewed on ExpertVoice.com
August 4, 2025
Solid Bivy
The Bivy delivers in all advertised points. It’s light and durable and the screen is nice when you want some air but not at the expense of bug bites. I think there could be some tweaking in the bivy’s screen to make it more stable and rigid. Love the coyote color. Hope they continue to make products with this color.

Originally reviewed on ExpertVoice.com
July 30, 2025
snug and dry
great addition to my kit, been using for a month now during overnights in the Alaskan interior. keeps body heat in well, blocks wind and big win, keeps the mosquitoes out!! been in temps down to 40°F now with winds and bouts of heavy rain, has done fantastic so far in both staying warm and dry. packs up small and dosen't take up much room in my pack. getting in and out can be a circus act for a large guy, I'm 6'5" and 260, but once I've wormd my way inside is plenty long I can fully lay out. thus far I've mostly used just my woobie and stay plenty warm, one of the wet cooler nights I added my patrol bag to level up a bit. was great inside. there is some breathing moisture that will build up when fully zipped in. and when it rained hard, I had to unzip a bit to get some fresh air in. otherwise this has been a great addition to by outdoor excursions

Originally reviewed on ExpertVoice.com
July 21, 2025
Not bad for the price. would like to see it come with 2 side stakes to make it more stable and secured. but it does its job.

Originally reviewed on ExpertVoice.com
December 11, 2024
Solid lightweight option
I used this throughout multiple environments in New Zealand during the spring. I didn’t have the money for an ultralight tent, nor the space since I brought a ton of splitboarding and backpacking gear, and it was perfect. Super lightweight option, incredibly quick and easy to set up, surprisingly warm too. I definitely would not want to use this in the rain however, and when it did rain I was lucky enough o set it up under a shelter, so never really tested it’s waterproofing but I bet it would be pretty miserable.

Originally reviewed on ExpertVoice.com
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