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Helium Bivy

#242828

Our Lightest Waterproof Bivy
$179.00
COLOR pewter
SIZE: 1size - Out of stock
free shipping - This one’s on us!
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Infinite Guarantee
INFINITE GUARANTEE
A true minimalist bivy for fast and light solo expeditions, the 18-ounce Helium Bivy is the lightest bivy we make. Credit the feathery waterproof, breathable Pertex® Shield+ fabric that doesn’t compromise on durability—the floor is 70D. This bivy’s no-nonsense clamshell design will handle seasons of adventuring to come.
Fabric :
Pertex® Shield+ 2.5L
100% nylon
30D ripstop upper - 100% nylon
70D with TPU lamination floor
Weight :
18oz / 510g Avg. Weight for size One Size
Fabric Performance :
Waterproof
Breathable
Ultra Lightweight
Fully Seam-Taped
Durable
No-See-Um Mesh
Hydroseal® Floor
Design Features :
Sleeping Pad Straps
Five Stake Loops
One Guy Line Loop
Internal Mesh Pocket
Functional Details :
Delrin® Single-Pole System

RATING AND REVIEWS

Good price/weight ratio

4

I used this on my PCT hike in 2017, I got it for the high Sierras where I consistently had 10 degree nights or minus 15 degree Celsius, it added around 5 degrees to my sleep system, it will build up condensation but worth the the cut in comfort for the protection

Sydney Australia

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Fast, easy, light, cheap, anywhere all-weather protection

5

Through my own personal experience and after years of buying different hiking shelters, this type of shelter is the go to every time for me (AT section hiker, < 4 days at a time, Whites in NH and Colorado). I currently have the OR net bivy as well and have been very happy except for its limits, which this bivy solves (rain!). 1) Add ultralight stakes like the Vargo titanium and you only add 40 grams (1.41 ounces) for all 5 stakes to the weight which will keep it tight and steady in higher winds. 2) Small footprint, it will fit in places that tents will not. It is a stealth camping enabler. 3) It will keep you dry with proper ventilation. Use a very small tarp or piece of it or a UL rain poncho (no need for pack cover either!) at the head covering the mesh and use 2 hiking poles on one side and 2 clips to tie it to the top of the arch/pole. You now have a vestibule and can set the bivy while everything inside stays dry. 4) You may be able to fit it in the same space allocated for a sleeping bag at a shelter. Adds warmth and puts an additional barrier between mice/spiders and you, just be creative in tying the head loop to a nail or any edge at the head to keep the arch up. 5) Easy 1 minute setup at the end of a tiring day. No messing around. 6) Cost is low compared to a $500+ tent of the same weight. If you pack ultralight, why do you need the extra space and the cost involved? Unless you are claustrophobic this should not be an issue. 7) I am 5'11 and the rest of the pack (sans food and scented items) as well as the shoes can be positioned strategically at the foot of the bivy for storage and to create additional vertical space which may reduce contact area between your sleeping bag and the bivy. 8) Star gazing. Besides the cons listed, closing it fully may trap some carbon dioxide, which, depending on your breathing may cause you to feel like suffocating or it may also be due to newly experienced claustrophobia.

Miami FL

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Pleasantly Surprised

4

This was my first experience using a bivy and I wasn't sure what to expect. Everyone I talked to told me I would have condensation problems but this was not the case. My first test was a quick overnight on Mt. Adams. Our group found a windbreak at Lunch Counter and set up camp under bluebird skies. Shortly after dark, we started to get some rain so I climbed into the bivy and hunkered down. I stayed totally dry despite the on / off rain & mist we were getting. I'll admit it was a bit claustrophobic inside, but the light weight and ease of setup more than made up for that. After a full night in rain & mist, my sleeping bag and clothes were totally dry with the exception of a few drops of condensation at the foot. Really great first impressions here. Looking forward to taking the Helium Bivy with me on my Timberline Trail hike this weekend.

Seattle, WA

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What you'd expect

3

My first time using a bivy sack, and the experience was exactly as I expected it to be. Don't bring along a bivy if campsite comfort is most important to you. However, the Helium takes up very little pack space and adds minimal weight, so it adds to your comfort while hiking the trail. I felt claustrophobic inside of it and needed to keep the exterior layer unzipped for airflow, which also made me a little colder at night. The four nights I've used it were dry with temps in the low 40's. Very little condensation collected inside and only near my head from breath. I'll continue to use this bivy when I am on solo treks or possibly river trips for the perks of low weight and packability. I didn't expect any bivy to be comfortable, as its built for function. Curious to see how well it works in rain.

Traverse City, MI

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Light and packs super small

5

Venting is fine if you leave the face part unzipped, otherwise it does get damp in there for sure

Calgary Canada

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Great bivy, use it for active duty infantry.

5

Used in 30 degree weather with just this and a woobie and I kept warm all night. Protected me from the chilly winds

Ft Bragg nc

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Best per ounce bivy in the industry. Alpine and desert

5

Lightweight and best protection in the industry per ounce carried. I use it both in the Canadian Rockies and southern US deserts. Very packable. and of course the weight speaks for itself. I heavier product might be more breathable, but with bivies you just manage the zipper at your head regarding condensation.

St. George, UT

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Excellent

5

I love it so much i bought one for my father.

Joplin, MO

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Basecamp

4

Used in most adverse hypothermia conditions possible in Pacific Northwest - strong winds, torrential rain, snow on ground. Stayed warm, dry, and no condensation. Rigged a lightweight tarp overhead for staying dry, gear, cooking etc and keeping dog dry. A perfect combination.

Issaquah, Washington

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Definitely what you need for shelter

5

I used this for a few trips in the North Cascades, it worked great! it's super small and light to carry in your pack when climbing and provides all of what you need in a shelter for the night.

New Paltz, NY

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Helium Bivy

4.4 13

100.0

Discussions

I bought today your helium bivy sack and I like it since it's very light weighted and seems easy to set up. but, I really don't know how to install pole inside the sack. this is the first time that I ever try a bivy sack. can you please give your instruction to set up this one ?? there is no manual nor instructions inside the package. your instruction in details would help me a lot. awaiting your prompt response. thank you from Kwon in New York City

KWON

There is a sleeve on the outside of the bivy that you thread the pole through once you have assembled it.

Jordan