Black Diamond Winter Bivy Sack

admin November 18, 2007


Black Diamond Winter Bivy Sack

Product Description

Price: $109.90
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The Black Diamond Winter Bivy was designed both as a minimalist bivy sack and a winter sleeping bag cover. Great for keeping down sleeping bags dry in wet coastal climates. Extremely lightweight, this innovative bivy sack is made of a breathable silicone encapsulated polyester ripstop fabric. This fabric allows the Winter Bivy to pack down so small that it can be carried in the pocket of your jacket. Ideal for protection in all conditions, the Winter Bivy can also be carried as an emergency shelter for climbers, hikers, and bikers out on day trips. During the summer months, you can use the Winter Bivy as a lightweight alternative to a sleeping bag. Zippered entry across the shoulders is conveniently positioned for easy access and sitting up.

Product Reviews

Black Diamond Winter Bivy Sack
I just returned from using my BD winter bivy sack while cycling through France for 2 weeks and it worked very well. I DID NOT USE A TENT, ONLY THE BIVY SACK. It is very roomy and lightweight! As with all water resistent, breathable materials, it allows for condensation to form in cool temps when the humidity is high but it dries very quickly. It worked very well in the rain and was easy to get in and out of. I am very pleased with it. Thank you!

Just as advertised.
Last winter I did a winter camp in yellowstone and my down bag was drenched from the condensation by the end of the week. This past trip I used the Black Diamnod/Bibler winter bivy sack on the outside and a western mountains vapor sack on the inside and my bag remained dry thoughout a week of winter camping. The winter bivy sack is extremely lightweight and compressable. It keeps your bag dry from mist, moisture and condensation (although I only used it iside the tent, and I’m not sure how much the vapor sack was responsible for the dry bag this year). The downside: It only has a horizontal zipper accross the upper TOP portion of the bag which can restrict movement/motion. If the zipper extended down the right side (to match my sleeping bag) then it would be a 5 star item!

Best for minimalist, fast and light climbing
This is very bare bones but does the job. There’s is nothing but the windproof/water-resistant fabric and a very light 2-way zipper across the shoulders. I’ve used it once so far in 15F dry weather surrounding my 20F sleeping bag at 11,000ft on San Gorgonio. It’s so small and light that you can pack it anywhere and it makes a good conversation piece.

Great Bivy!
I highly recommend the Bibler Winter Bivy Sack…it is the ultralight hiker’s dream (9 ounces, verfified on my scale)! I broke the bivy in during a hike through the White Mountains, NH in miserable conditions (sleet, snow, freezing rain). Paired with my SilPoncho, I spent the night warm and dry. The bivy did a great job of keeping my bag dry from any splashing rain, but I did find that I had to open the zipper on occasion to relieve some of the condensation. Despite this, I found the Epic shell to be quite breathable (C’mon, I have yet to experience any "waterproof/breathable" piece of gear that didn’t have at least a little bit of a condensation issue…so I’m realistic in my expectations). This product gets my highest endorsement for the ultralight hiker.

Bibler Winter Bivy Sack
I was looking for something light weight for winter climbing. On a scale from 1 to 5, this winter bivy is definetly a 4++. Extremely light weight, easy to enter and exit and it kept my bag absolutely dry after two nights in snow caves. Nice price too. I can’t think of anything more I could ask. Highly recommended. Backcountry gets a 5.0 for service, I had the bag within 3 days of ordering and I live in Asia. Can’t go wrong ordering from these guys.

Black Diamond Winter Bivy Sack
Price: $109.90
Buy Now

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