Outdoor Research Alpine Bivy Review

Outdoor Research Alpine Bivy, Steel Blue, 1size

Click on image for more info from Amazon

The Outdoor Research Alpine Bivy is great when you want to go backpacking and keep things lightweight. This poled bivy weighs only 2 pounds and packs small. A single pole can be used to create overhead space, or it can be left at the trailhead.

Outdoor Research Alpine Bivy

What is good about this bivy tent

Waterproof Gore Tex fabric  – The shell material on the Alpine Bivy is a special durable and waterproof Gore Tex fabric specifically created for bivy sleep systems. This fabric optimizes weather protection while creating a vapor-permeable layer that won’t collect condensation like other weather resistant bivy systems. Anti-Fungal Coating on Floor

Ventilation – the no-see-um netting on the Outdoor Research Advanced Bivy Bag allows better airflow without letting the bugs in.

Design – the single overhead shockcorded Delrin pole keeps the bivy up and off of your face when the sack is closed while a wide storm flap shields the zipper from wind and rain. A deep taffeta floor easily accommodates thicker insulated mats like the Exped Downmat 7. There are loops and stakes to keep the bivy anchored.

Size – the bivy is 84 inches long while the high-volume foot area gives you plenty of legroom, although some find there’s also space to keep a few water bottles from freezing overnight. If the dimensions seem a little cramped and you need the extra legroom, you can consider opting for the larger Outdoor Research Advanced Bivy.

Lightweight – and all of this in incredibly lightweight, two pound package which only takes up 4 x 15.5 inches in your pack. You will hardly even notice it.

Pockets – inside the bivy sack you will find a small internal mesh pocket for your watch, flashlight or a paperback book.

Best use for this lightweight bivy

  • Backpacking
  • Hiking
  • Mountaineering

Outdoor Research Alpine Bivy Features

  • Outdoor Research Alpine Bivy4 Season waterproof bivy sack
  • Made of highly breathable GORE-TEX fabric to keep you dry
  • Durable Hydroseal coated floor
  • Anti-fungal coating on floor
  • Fully taped seams
  • Single, shock-corded overhead Delrin pole
  • No-see-um netting at opening
  • Sleeping pad straps
  • Sized to fit thicker mats
  • High-volume toe-end
  • Five stake loops; one guy-line loops
  • Small internal mesh pocket
  • Stuff sack
  • Weighs 2 pound (0.91 kg)
  • Pack size of 4” x 15.5”
Outdoor Research Alpine Bivy, Mojo Blue, 1Size

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What customers say about the Outdoor Research Alpine Bivy

There were only positive reviews for this bivy sack. Several reviewers mentioned that you should test it out prior to a major trip as this is not for everyone, especially if you are claustrophobic. A reviewer remarked, “I was able to read a book with my headlamp inside the bivy, with the proper head support (from extra clothes). This surprised me because when I first got in it felt small, but once you are laying down, there is enough room to read a book with.”

Reviewers agree this also extremely weather proof. One backpacker used it on a cold night, about 30 degrees, with slight dew. Another hiker “to test out condensation, I zipped the rain cover to about 2/3 shut, and left the remainder open. There is a semi-stiff material that helps keep the top zipper part slightly separated from the lower zipper so the venting is effective.”

Several reviewers mentioned it packs up nice and small. And to pack up you remove stakes, slide short pole out and collapse it, then give the bivy a trifold and roll it up. Although advertised as weighing 2 pounds, one reviewer said his was lighter at 1.8 pounds.

This reviewer added that by adding loops for it to be staked out OR has made sure that as you move in the night the bag stays right side up, and does not shift on the ground.

There were no issues with this bivy however several people mentioned they would have liked a full length zipper.

The Outdoor Research Alpine Bivy offers a lightweight and waterproof sleeping option when backpacking.

Outdoor Research Alpine Bivy

OR Alpine Bivy

Lightweight & compact








Value for money



  • Lightweight at 2 pounds
  • Single pole creates overhead space
  • Waterproof Gore Tex fabric
  • Packs small
  • Pockets for small items


  • Some condensation
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3 comments for “Outdoor Research Alpine Bivy Review

  1. R. L. Reviews
    April 8, 2018 at 1:26 pm

    Top quality materials in a small easy to pack size. Taken this out several times so far, longest trip being a couple nights in the Catskills escarpment trail. It rained the first night and snowed the next, both times I stayed dry and warm. As long as you aren’t claustrophobic, this bivy will keep you protected. A friend took another bivy that only had an open mesh to cover his face and he ended up returning it to pick this up after seeing mine in the wild.

  2. P.K.
    April 8, 2018 at 1:39 pm

    The materials are good enough for a winter overnight under the stars in … Top quality bivy bag. Very durable, waterproof and quite spacious. The materials are good enough for a winter overnight under the stars in snow or sleet. It’s more spacious in width and height than military surplus bivy bags. There is still some room left for your shoes on the side and a small backpack around 35L as a pillow. It also had a nice bug mesh. Very compact and light when packed, so great as a quick temporary shelter in the woods. Of course, if you don’t like to sleep in tight spaces, this is not for you. But if you prefer packing light and sleeping outdoors outweighs the downsides of sleeping in a bivy, go for it. Highly recommended!

  3. talthing
    April 8, 2018 at 2:04 pm

    As advertised I am really happy with this product.It is waterproof and does protect you in an actual storm. It does add a measure of warmth. For those wondering….the bottom edge in front has a stiff collar (on the OR advanced bivy….they supply a second pole) so you’re saving 7 oz weight and still get the same functionality.I was out in the Stanislaus NF (Dardanelles area) and it rained, snowed and hailed a little while I was there. The ground was wet. I had a down bag I was using with it (ZPacks 20 degree….so not a cheap bag and yes, I got one with the treated down) unfortunately the sleeping bag wetted out mainly due to the amount of condensation that occured inside the bivy. Fortunately the bivy kept in some of the heat since the sleeping bag was useless and, while I was pretty cold, I did not freeze to death.I sent the ZPacks sleeping bag back and got Mountain Hardware ultralamina 15 degree bag. We’ll see how this holds up. The bivy however is…

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