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Alpine Bivy

4.8 out of 5 stars
5 Reviews



Why We Like The Alpine Bivy

When we're planning on sleeping in tough conditions but aren't interested in carrying a tent, we make sure to stick the Rab Alpine Bivy in the pack first. It weighs only a pound and packs down to the size of a water bottle, so we never have to leave essential gear out of our pack to bring it along, and it zips up all the way to offer full protection from the alpine elements. The eVent  waterproof and breathable membrane and 3-layer DVStorm fabric keep water out and prevent condensation from building up inside, while the tough nylon floor stands up to rough ground when sleeping in less-than-perfect conditions.


  • Minimalist bivy for use on alpine expeditions and summit attempts
  • Waterproof, breathable construction fends off alpine precipitation
  • Mummy shaped to fit technical sleeping bags without losing warmth
  • End zip entrance with protective storm flap adds protection
  • Coated nylon bathtub floor prevents your butt from getting soaked
  • Item #RABZ0BS
[membrane/laminate] eVent (3-layer), [face fabric] DVStorm, [floor] 70D nylon
fully sealed
Interior Height
Floor Dimensions
19.7 x 92.5 x 31.5in
Floor Space
16.4sq ft
Packed Size
12 x 5in
Trail Weight
1lb 0.5oz
ultralight backpacking, mountaineering, winter camping
Manufacturer Warranty

Overall Rating

5 based on 5 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 4 reviews

Fits True To Size

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Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

April 29, 2023

Fantastic bit of kit

I’ve used this bivi for a few years now & recently used it last winter in the Cairngorms. It give great protection of your sleeping bag. Now condensation inside, even at -10°, it still stood the test. I’ve even used the bivi to sleep out in the open at Red Tarn with just a lightweight sleepingbag

Dan R.

Originally reviewed on Rab

5 out of 5 stars

March 19, 2023

Great bivi

Fantastic bivi. Super light weight With a small pack size. Large enough for plenty of room and large sleeping bags. Perfect at keeping the elements out of your down bag and protecting expensive sleeping bags. Tough enough for rocky ground. Overall great bit of kit .

Steve t.

Originally reviewed on Rab

5 out of 5 stars

August 12, 2022

The Perfect bivy!

I've put it through the wringer
Size Bought:
6' 1"

I've used my Alpine bivy for 5 years in all conditions and it's been the most amazing shelter! In snow, in driving rain and even humid conditions I've never had a drop of water or condensation on the inside. It's my mountain 'blankie' and I would cry if I lost it!

Ian T
5 out of 5 stars

January 8, 2022

Excellent bivy

I've used it several times
5' 10"

After using this bivy a handful of times, I’m convinced. It keeps me dry, adds a layer of wind protection and warmth. I’ve used it with just a blanket inside in warmer temps, and it works well. I have not had a moisture problem so far. After reading a comment on here stating that this has pertex material, I have to state that this bivy does indeed have e-vent material, as it is printed directly on the side of it. Great Bivy!

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Jessie M