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Black Diamond Big Wall Bivy Bag

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Big Wall Bivy Bag
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The Black Diamond Big Wall Bivy has been a favorite for alpine and big wall climbers throughout the world. This minimalist shelter is designed for harsh environments and technical climbs. The wire reinforcement in the hood cuts down on claustrophobia while the ToddTex keeps you nice and dry. Climbers love the Big Wall Bivy for its full strength tie in point which allows you to stay clipped in and sealed off at the same time.

Bottom Line: Tie in and sleep tight.

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Does this come from the factory seam sealed or taped?

Does this come from the factory seam sealed or taped?

By:
July 22, 2011

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Taped but not sealed.

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July 22, 2011

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Rating for this product: 4

Almost completely happy.

By:
May 20, 2011

Nice and light. Much more fun to carry then a tent. The pole that keeps the hood up is actually a thick wire that can be bent into all sorts of positions depending on the protection needed. Entry was not all that easy. I'm 6'1" @ 185lbs and with a NeoAir pad inside it was a task that will require some gettin used to. Keep in mind though the Neo is a large and does take up a good bit of space. Once inside space is not a problem. Just don't expect to have the full freedom of motion like one would have in a tent. Felt very comfortable and the bivy doesn't weigh down on you. No moisture at all. Not a drop. This would be 5 stars if entry was a lil better. I think my tents are goin to be seeing alot more closet time.

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I've used this bivy a few times now. I realize condensation

I've used this bivy a few times now. I realize condensation is general problem, but has anyone had problems with water build up (from condensation) at the feet? This water build up tends to get my feet wet and I start losing temperature. Know of ways to prevent this kind of problem?

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June 7, 2011

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Jared, this may sound strange, but try some neoprene socks and if that doesn't work, try a full on vapor barrier liner. The water bottle trick above won't work because that will just create more condensation by making you even hotter. The problem isn't a temperature problem, it is a condensation problem that then translates into a temperature problem. If you have a down bag, this will only get worse the more nights you camp. Hope this helps.

By:
November 27, 2011

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Jared, I honestly haven't had much moisture in mine. Certainly not enough to draw heat from my feet. That would certainly be a bummer. Perhaps you know of this trick already but have you tried the Nalgene water bottle in the bag trick? If not, this is what you do. Pour not quite boiling water in a Nalgene bottle and throw it in the foot of your bag about an hour before turning in. It works great! I know the thought of a leaky water bottle sounds a bit risky and when my backcountry skiing buddy promised me it would work I tried it. Amazing thing is - the bottle is still warm when you wake up. This hasn't failed me yet and I've done it about 1/2 dozen times when I was cold enough. Screw on the lid tight and test it and you should be fine. Maybe if your feet are just "super juicy" it will still ward off the suck-i-ness of cold feet and the misery of losing badly needed sleep.

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September 16, 2011

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Yeah, I have that zipper as wide open as it can go. I have the hood as up as possible. On nights that aren't too cold, I even sleep with my head outside. And I still get wet down at the feet. Maybe my feet are just super juicy...

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August 25, 2011

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Only option is to open the vent a bit more so your breath goes out.

By:
June 9, 2011

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Rating for this product: 5

The best of its class and very breathable

By:
December 11, 2006

I have spent some good time in many different bivies but none can compare to this one. Extremely breathable and totally waterproof. A very durable fabric and the tie-in points are an important feature when needed. Not too tight or too wide, just right. A minimalist bivy with some breathing room. Only complaint is not as durable as some other fabrics but will hold up to tons of abuse.

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Hello all, it seems to me that for a bivy that weighs in under

Hello all, it seems to me that for a bivy that weighs in under 2 pounds this has a fairly large advertised packed size. 6x13" isn't that much smaller than my kelty 2 person tent. Can anyone attest to this tent being more compressible, or is that size limited by the length of the wire in the hood? Also if anyone could comment on how easy this is to get in and out of, and what sort of sleep systems you set it up with, i.e. do you bring a sil tarp to cover the head area or pitch to put gear under or change under. My backpacking in the north cascades of Washington usually involves obscene amounts of rain, I'm just trying to stay dry.

By:
August 5, 2010

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In further response to your question about packability, I have recently begun to remove the delrin rod (hoop)and it does pack down quite a bit smaller. I just put the rod in my wand pocket on the side of my pack and carry it that way. This has two benifits. As I said, it allows you to pack it smaller but also helps keep the Delrin from retaining too much of a undesirable shape. It has been my experience that by packing the bag in the same fashion my rods arch flattens and is more difficult to bend back into a desirable shape when you're cold and tired and just don't want to mess with it. Delrin is a plastic that has memory so you can bend it, hold in that position and it stays. You can also straighten it which is how I like my rod so when I put it back in I get the desired arch and the fabric is kept off my face even with an improvised pillow.

Also, I just experienced my first bit of condensation on a recent Sierra trip but I had closed the zipper about 3/4 shut to keep out a cold blowing wind at around 13,000 feet. But, to me, the level of moisture was negligable (not appreciably wetting my down bag) Hope this helps.

By:
September 16, 2011

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That amazes me that people claim to not get any moisture...I get quite a bit! And I keep the zipper open. This is blowing my mind. From my point of view you'd definitely want a tarp or something if it's going to be raining or whatever (unless you have some other kind of shelter). Otherwise water will get in since you have to keep the zipper open (I can't imagine how much moisture would be inside if the zipper was closed). I personally take along a small tarp when I expect bad weather. But in my case it's usually just to aid in fast snow trenches in bad weather. So no rain so far, just snow (and not slushy snow). As far as the packed size goes, I hear you about your issue with the size. There are ways to compress it more, but the limiting factor is definitely the wire hoop. If it wasn't there, this thing would pack super small. But once again, it depends how you pack it as far as how compact it will be. And for the small opening, I think it's easy to get in and out.

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June 9, 2011

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It would be difficult to get this more compressable. The hoop in the hood is not a factor. I've had two of these. I will buy a third if I have to although I doubt it as it's pretty durable. (My brother took my first one.) To answer your first question it's not the easiest to get in and out of - it's not the hardest either. With a little practice the middle of the night wiz isn't any worse than getting out of a warm tent. The hoop keeps the fabric off your face and I like that. And it creates a vent - which I really like. I've never used any tarp to cover the head area as it's un-necessary - to me. I've actually sat in this and ate dinner. (The hoop helped that) I got the long to store my shizzle in when it rains or starts blow'n. I've logged WAAAAAY more time in this than my tent in the past ten years which is a testiment to the ease and weight of this bag. I've used this for winter alpine ascents, back-packing, climbing and even quite a few car camps. I love this thing. Oh, and I've not had a drop of moisture from the inside or out.

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August 28, 2010

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Rating for this product: 5

Sweetness

By:
October 15, 2009

Super light and perfect. Durable so I dont have to worry about using it anywhere and roomy so I dont feel cramped.

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Tour de Massive +1

By:
July 4, 2009

Mount Massive along with neighboring peaks

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Will this work for snow? Backcountry skiing and climbing?

Will this work for snow? Backcountry skiing and climbing?

By:
May 26, 2010

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It is snow and rain PROOF!!!

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June 1, 2011

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Rating for this product: 5

Cool!

By:
June 4, 2009

Outstanding performance especially in winter.

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Do you guys ever get any in the tall variety??

Do you guys ever get any in the tall variety??

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February 22, 2009

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yah, there just sold out now, bought the last one

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June 17, 2009

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Rating for this product: 5

Ballin Sack

By:
July 20, 2009

First bivy i've ever bought and im definitely not disappointed. Kept me warn and dry climbing 14ners and trekking in Montana. Can't wait till this winter to give it a real work out

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How does this compare to the BD Winter Bivy?

How does this compare to the BD Winter Bivy?

By:
January 14, 2009

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This bag is waterproof (ToddTex and completely seam taped), and the Winter Bivy is not. The EPIC coating in the Winter Bivy is more breathable than Gore-Tex (or ToddTex I think), but not waterproof.Big Wall:Packed Weight- 1lb 12oz (805g)Packed Size- 6in x 12inArea- 15sqft (90in x 35in)Fabric- Canopy (ToddTex); Floor (PU Laminated)Winter:Packed Weight- 9.9oz (280g)Packed Size- 3in x 5inArea- 14sqft (85in x 35in)Fabric- Canopy (EPIC); Floor (EPIC)

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January 23, 2009

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Almost completely happy.

4 star rating

By: james chrzanowski May 20, 2011

Nice and light. Much more fun to carry then a tent. The pole that keeps the hood up is actually a thick wire that can be bent into all sorts of positions more...

The best of its class and very breathable

5 star rating

By: Garrett Grove December 11, 2006

I have spent some good time in many different bivies but none can compare to this one. Extremely breathable and totally waterproof. A very durable fabric more...

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Material:
Todd Tex 
Poles:
Pole Attachment:
sleeves 
Packed Size:
6 x 13 in 
Seams:
completely seam taped 
Ventilation:
mesh panel 
Trail Weight:
[standard] 1 lb 10 oz; [long] 1 lb 14 oz 
Recommended Use:
alpine and big wall climbing, or any other time you want a super light shelter 
Manufacturer Warranty:
lifetime