Outdoor Research Helium Bivy Sack
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- Overview Overview The OR Helium Bivy is ideal for multiday minimalists looking to trade weight for speed, agility, and performance. Thru-hikers and bikepackers love the Helium for its refined footprint and reduced w...
- Technical Specifications Technical Specifications
Product title: Outdoor Research Helium Bivy Sack
SKU: ACT_ORBHELIUM-PewterThe OR Helium Bivy is ideal for multiday minimalists looking to trade weight for speed, agility, and performance. Thru-hikers and bikepackers love the Helium for its refined footprint and reduced weight and trust it for its feathery waterproof and breathable fabric that doesn't compromise on durability.
- Ultra lightweight waterproof and breathable fabric with fully taped seams
- Removable single pole adds ample headspace or can be left behind to save weight
- No-nonsense clamshell opening with durable No-See-Um mesh
- High-volume toe end
- Internal fly fasteners
- Stake Loops and guy line loop
- Reflective logo and trim
Outdoor Research Helium Bivy Sack Technical Specifications
| Upper Fabric | Pertex Shield 2.5L (100% nylon 30D ripstop) |
| Lower Fabric | 100% nylon 40D with TPU lamination floor |
| Poles | Delrin Single Pole System |
| Length | 82" |
| Height (At Top) | 19.75" |
| Width (At Top) | 26" |
| Width (At Feet) | 19 |
| Packed Dimensions | 12.25" x 3.5" |
| Weight | 16.2 oz. (459 g) |
- DFDrew F.Rated 5 stars3 years agoa great purchase
really great bivvy, recommended!
Was this helpful? - AAnonymousRated 5 stars3 years agoExcellent lightweight bivy option for almost all conditions.
Overall, I've had very good experiences with this bivy so far. It has performed well in inclement weather. I've stayed dry in light/moderate rain overnight (wasn't continuous). I also stayed dry when camping in a partial snow cave (not a lot of actual precipitation, just mostly snow melt drip). The breathability is limited in this fabric, but that is the nature of bivy's in my experience. The material is also thin, so just treat it with respect and you'll do fine.
Was this helpful? - AAnonymousRated 4 stars3 years agoWell made, good fabrics
The fabric is soft and breathable and still waterproof. I slept right in the danger temp zone next to a river after a week of hard rain and I was fine, sleeping with the bug net closed only. I did have a guy line keeping the pole from flopping down.
Was this helpful? - CCamRated 4 stars7 years agoOutdoor Research Helium Bivy Sack
I rated it at a "4" because I've only used a half dozen times but it has been flawless. Pro's: lots of room, breathed well in semi-humid conditions, packs up really small, waterproof, pole works great, cheap! Con's: I see the 2.5 layer not breathing as well as its 3 layer counterparts once the cold weather camping starts up but cannot say for sure, almost too roomy/ or baggy.
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