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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 21 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageSeptember 10, 2025
lightweight and durable. this item kept me warm and dry. I used it for over ernight solo camping in Colorado. the big net was a nice touch for nights with good weather. only complaint is that there is no guy point and the foot of the bivy, and the pole could be sturdier. recommend for anyone with bivy experience.

Originally reviewed on ExpertVoice.com
September 10, 2025
The overall structure of the bivy is good if it’s fully zipped. It was warm one night and the bugs were out so I tried keeping just the mesh zippered but I could seem to 1. Keep the pole upright and 2. keep the main flap upright. However, I think it’d be great in winter conditions.

Originally reviewed on ExpertVoice.com
September 7, 2025
Lightweight
Amazingly lightweight, but still feels very durable - set up was a breeze, and the coyote color was a good tactical choice for blending in with the environment. Will definitely include in my pack for all outdoor excursions

Originally reviewed on ExpertVoice.com
September 4, 2025
Light and Airtight!
This is a super light and easy to set up bivy, a step above an emergency sack like the SOL Escape. I used this for a Mt Olympus (WA) climb, and was happy with the light weight and ease of setup. However, when I zipped the rain fly fully, I woke up gasping for air and realized the tent has no airflow. Works great otherwise, though I haven't tested it in the rain.

Originally reviewed on ExpertVoice.com
September 1, 2025
Havent used it yet but its small, light and fits in my bag without taking up much space!

Originally reviewed on ExpertVoice.com
September 1, 2025
It's definitely small but worth the weight savings over the 2 person tent I was using previously. A little condensation accumulated overnight despite only the mesh being used.

Originally reviewed on ExpertVoice.com
August 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
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