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The super light Black Diamond Hooped Bivy Sack is designed for climbers, bicyclists, and ultralight fanatics. The sewn-in flexible wire hoop keeps the top fabric vaulted above your face so that there are no poles to set up and no parts to lose. Todd-Tex waterproof breathable fabric provides protection from rain and snow while allowing the breathability necessary for a comfortable, moisture-free night. At just 26 ounces, this durable, storm-proof shelter also serves as an ideal insurance policy for an unplanned bivouac.

  • Freestanding single-wall bivy design saves weight by eliminating the need for a tent canopy, fly, and poles; ideal for four-season climbing and trekking applications
  • Waterproof breathable Todd-Tex fabric sheds wet weather and breathes exceptionally well to help reduce condensation
  • Taped seams prevent dripping water or morning dew from sneaking in through the fabric joints
  • Foot and head ends are "boxed" so they won't cramp your toes or compress your sleeping bag's loft
  • Sewn-in wire creates space above your head to improve airflow, decrease condensation, and limit claustrophobia
  • Dual-sized zip entry provides easy access
  • Mesh panel keeps out bugs and helps cut down on condensation buildup
  • Small size fits easily into a backpack, bike pack, or haul bag
  • Optional footprint sold separately
  • Based off original design from Bibler
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    I have a young family of five and we love getting out on the long trails. So I need to save weight. I use a floorless tarp/tent to fit us all. And we use the Black Diamond hooped bivy. They keep the bugs out with the bug screen. It is waterproof, (proof; Grand Gulch storms). And the layering effect, it blocks the wind, and keeps in the heat.



      I have a young family of five and we love getting out on the long tails. So I need to save weight. I use a floorless tarp/tent to fit us all. And we use the Black Diamond hooped bivy. They keep the bugs out with the bug screen. It is waterproof, (proof; Grand Gulch storms). And the layering effect, it blocks the wind, and keeps in the heat.


      Emergency Hooch Only

        I tried a few different bivy sacks before settling on this one; I am 6' 3" and not a skinny man so my big issue with bivys in general is getting in and out of them without cramping up or destroying the sack. This sack is large enough to be "comfortable" (a loose term when discussing bivy sacks) in a good sleeping bag, and the wire works fairly well in creating some head space to alleviate the claustrophobia. Despite the factory seam taping I went ahead and sealed all outer seams with McNett SeamGrip, would recommend this for any serious wet-weather scenarios. Very light and packable, all around good piece of gear but I'm still a tent guy...

        Used and abused!

          First off let me say what it's been through, two years of wilderness patrol for the usfs along with a year on the trail crew and countless trips kayaking and snowshoeing. It's held up great. Also I'm known by many for being hard on gear. I typically will leave my pad in my bag in my bivy. This makes for a quick camp at the end of a long day. It's been thrown down on sticks, rocks, and other ruff surfacers all it's life... and it's still water proof.
          You will notice some moisture on the floor in warmer wetter climates. Also the size is an isue for alot of people, but if you can put up with it, it's the lightest bomb proof all weather shelter you can get for a good price. It's also a bit hard to get into, like a sleeping bag with no zipper.

          No doubt in my mind the best tent for the knees and the ultra light packer.

          oh, you don't want to hang out in a bivy like you might a tent in bad weather or winter darkness.

          This thing is great

            This is my first bivy and it works great for fast and light camping. Just make sure you don't fall off your sleeping pad, due to condensation on the floor, but it usually isn't a problem. Also if bugs are a concern you may want to consider the tripod, Mosquitoes can bite through the netting if it is close to your skin. All in all it is much better than dragging a tent along and works great in combination with a tarp. It also eliminates the need for super bulky cold weather bags in most conditions.

            bibler hooped bivy sack

              Worked well in bighorn mts, wyoming. Positive: Very light, made solo infinitely better. No setup. Packs smaller than my sleeping bag. Kept me completely out of wind/snow/frost. Negative: I'm 6' even, wishing I got the extra-long, as putting clothes/raingear/camera in sack with me for the night made it pretty crowded. Some condensation on the interior floor after nights of 10-20 degrees fahrenheit, but easily wiped dry. Overall: definitely worth it.

              will this bivy have enough space for me...

              will this bivy have enough space for me to fit my big agnes sleeping pad and 0 degree bag? the bivy i have currently, when the pad is in the bivy, compresses the loft. so would this fit it? my pad is 3 inches thick

              Best Answer


              Unfortunately, this bivy sack is not designed to fit a sleeping pad and a bulkier sleeping bag inside the sack. If you'd like to use the integrated sleeping pad/bag combo and get them both inside the bivy sack, you'll need a larger bivy sack such as the Black Diamond Bipod:

              Hey Connor, a while back I actually had almost the exact same system--a hooped bivy, Big Agnes 0 degree bag, and a slightly thinner pad.. I always found that by morning, the outside of the bag was wet and the down was compressed. Now I just use a Black Diamond Bibler iTent and don't worry about it at all. Sorry man.

              Ok. Looking for the most bad ass Bivy for...

              Ok. Looking for the most bad ass Bivy for bikepacking. What's the lightest, most breathable, waterproof bivy out there ? Think I'm going to go in that direction. Will be mated up with a western mountaineering highlite and Thermarest. No arctic colds. I'll be mostly in the southern Sierra.

              Best Answer

              That's a tough call, but I've been partial to Outdoor Research and Rab's stuff. If you're going to be hanging out and want something more than just a sack that's more than just a place to crash out, you definitely want something hooped or maybe even a solo tent like the Big Agnes Seedhouse SL1. More room inside to actually function, less claustrophobia, light enough to justify, packs small enough to fit in your panniers. Hope this helps.

              What is the right size of compression sack...

              What is the right size of compression sack for the Black Diamond Hooped Bivy Sack (Long), or does the hoop make a compression sack impractical?

              Are bivy's supposed to replace tents? Can...

              Are bivy's supposed to replace tents? Can the bivy keep out creepy crawlies like scorpions in the Arizona desert looking for something to keep warm under?

              Best Answer

              They can if you're flying solo. They usually add about 10-15 degrees of warmth (F) over sleeping in the open, and there's the added advantage of keeping rain, sun, wind, and yes, creepie-crwlies out. Plus they pack up way smaller and lighter than a tent. If you're into solo backpacking, this is the way to go.

              Hi, I am going on a mountain goat hunt in...

              Hi, I am going on a mountain goat hunt in Alaska where I live. I am wanting to buy a bivy that I can pack with me in the event that I get stuck on the mountain OR need to spike camp for a couple three days. I can expect rain and/or snow that time of year and want a bivy that I will not get soaked in. Do you think this would work for me or is there something else that you would reccomend. I am also looking for a sleeping bag liner that I can use in conjunction with my Big Agnes 0 degree bag. I will also be wanting to carry the liner with me in case I get stuck on that mountain to use with the bivy. Thank you in advance for your help, Len Mann

              in SE bivys are a bad idea go with a botomless tent they are lighter then tents and provide good protection from the wether.

              i know a guy that uses a botomless tent goat hunting he loves it, his big problem with bivys is that you cant shoot from inside them (he has ben mauled by a bear and goat teritory is serious bear teritory) another big problem is you can't field strip a weapon in a bivy

              Would it be too warm in hot weather? Could...

              Would it be too warm in hot weather? Could you manage a clothes change in it? Could you see the stars through it?

              I spent a summer doing field research in the North Cascades using this bag comboed with a light weight sleeping bag. I found this bivy to be too hot, and the hoop didn't keep the netting off my face enough. Result: sweaty body bugged by incessant buzzing. I've not tried the tripod version, but I think it might keep the bivy material off your head enough to allow more heat to escape. Hope this helps

              These are one of the better. I have tried, no bag one that was 89 and I turned into a sauna tube in a minute. Most will be waterproof but it is the breathability.

              I like Big agnes for their eVent bivy or one that is goretex for the best breatheability.

              Also yes get a bipod/tripod for soemthing off your face. Some dont care but I cant stand anything on my face.

              I'm a minimalist.

              While Hiking on the Appalachian Trail, this bag have gotten too hot during the summer even though I don't really use anything on myself and slept atop of the pad and sleeping bag. So the temperature is a big factor.

              For warmer yet wet season, I'll recommend a tarp tent system with some netting to prevent bugs from biting you. If it's a dry season, just cowboy camping will do if the dew isn't that bad via West versus East (PCT & AT)

              It's a great bivy sack if the condition requires it. I've hiked for 800 miles or more with it on the Appalachian. For not too warm weather, I like to use light/bottomless sleeping bag with half-pad left in the Bivy sack & roll it up then stuffing it in long sack bag to save some time for the set-up/packing.