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Anonymous08/31/26, 13:18No.2879077Staying dry when bivi/bivvy/bivvy camping
Bivi general for my fellow bodybag enjoyers.
I recently got my hands on a dutch army bivibag and I got to test it in quite heavy rain.
Everything looked dry but where a puddle formed, the sleeping bag was completely drenched.
I was used to using Norwegian army bags in snow without issue, and I learning with a TF1522 bivibag that in rain they aren't waterproof.
Now I hoped that I could use the bivibag for a minimalist trip without tarp.
Can this be fixed with a DWR spray, or do I really have to use a tarp?
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Anon08/31/26, 13:20No.2879078
spotted one of these for really cheap at the thrift market but feel like it'd need some special snowflake poles since those were missing
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Anon09/01/26, 15:03No.2879163
Looks neat. Can't you wax these?
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Anon09/01/26, 20:36No.2879193
there is literally zero reason to use a bivy just cowboy camp
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Anon09/02/26, 10:17No.2879252
Membranes aren't fully waterproof, especially if there is abnormal pressure like when a puddle is formed. I'm not sure that would be enough to drench what is underneath.
If you bought it used the membrane might be damaged. The oldest ones are from over twenty years ago.
Is it from Fecsa or Carinthia? The Carinthia ones are the oldest.
If the membrane is damaged DWR will only help in a drizzle.
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Anon09/09/26, 15:07No.2879765
I just found impregnation ruins gas permeability according to some YouTube comments, a property of the special material used for the bag. It's not regular goretex.