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  • Marmot Alpinist Bivy Alert One Size
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Marmot Alpinist Bivy Alert One Size

by Marmot

Currently unavailable.
We don't know when or if this item will be back in stock.
  • Lightweight; highly compressible to fit into any pack
  • Made from Marmot MemBrain waterproof/breathable fabric
  • Utilizes an extended, easy-entry zipper
  • 100% seam-taped; waterproof
  • Storm flap
Currently unavailable. We don't know when or if this item will be back in stock.

Product Description

Designed for the 21st century, the Alpinist Bivy offers minimalist protection for climbers and back-country adventurers. Being 100% seam-taped, it is both highly waterproof and durable.

Product Details

  • Product Dimensions: 85.8 x 35.8 x 7.9 inches ; 15.2 ounces
  • Shipping Weight: 1 pounds
  • ASIN: B005DTERIY
  • Item model number: 27720-9321
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (1 customer review)
  • Amazon Best Sellers Rank: #1,238,916 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

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Most Helpful Customer Reviews

1 of 1 people found the following review helpful By J. B. Stiles on January 25, 2013
This bivy bag is only usable in winter weather -5°C or 23°F because the fabric is definitely NOT breathable membrane. I tried to used it in the Pyrenees in late summer and the condensation caused my sleeping bag to get soaking wet and heavy with water. I tried it last night sleeping on a frozen lake in Finland in -15°C or 5°F and it worked perfectly. Condensation occurs - as a normal function of human respiration - but at sub-zero °C moisture freezes in the bag and is not a problem. Just beat the bag after use and the ice crystals fall away. Of course you will need a 4 seasons sleeping bag (I use a Marmot Couloir and it's superb). Good combo. No need for tent or other shelter. Folded away it is extremely compact and light. I will take this bivy bag with me to do off-track skiing in Lapland.

POSTSCRIPT:

I tried this bag again a few days ago in subzero conditions, around-5°C, using a lighter Marmot Plasma sleeping bag and had no problems at all with condensation. I think my earlier problems may have been to do with having too warm a sleeping bag, which made me perspire. I would guess that if temperature inside the bag is appropriately regulated then the problem of condensation can be minimised. I'm going to give it another try as it's a lot simpler than a tent: significant factor when you are exhausted from walking or running and all you want to do is lie down and sleep.
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