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djpr
304
Aug 24, 2017
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I've been tossing up about getting on the drop for either this or the alpine bivy for times when I am walking tracks with huts that I may need to sleep in my own shelter from time to time, when the huts are full.
Condensation sounds like it can be an issue in any closed bivy, with that in mind does anyone have recommendations as to which bag would be the better one to purchase?
I occassionally camp in low alpine areas but not in the winter/the snow.
Aug 24, 2017
A community member
Aug 25, 2017
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djprI am tossing up as well - except I am looking for a sleeping bag 'splash' and bug cover for tarp camping.
I have looked into both this and the alpine bivy. If I was going to use just a bivy as my only reliable shelter i'd go the alpine as it is so robust with 3 layer gore-tex.
For splash/bug resistance or for an occasional solo shelter I 'd go the helium as it is 400g lighter and will be just as waterproof and 'breathable' as the goretex, just not as robust.
I have jacket and pants made out of the same material as the upper on the helium bivy and it's reliable stuff.
Condensation is best managed by ventilation, not material. if it is humid outside the bivy and it is closed up you will suffer condensation, irrespective of what it is made from.
Aug 25, 2017
djpr
304
Aug 25, 2017
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Thanks for the suggestion. I'd be using it more as a back up shelter and not a primary. I have a really good 1.6kg (around 3 pound) 2 man tent that is great for when I'm hiking and know that I'll be using my shelter.
My mate that has a bivy for the 'splash' protection uses one from Katabatics, although I think they are more expensive than these... also not sure if they have bug mesh.
Aug 25, 2017
A community member
Aug 28, 2017
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djprmmm... I just bought a well priced mosquito net for the tarp so my splash/wind proofness can now be fixed by a Tyvek sleeping bag cover that's cheaper and lighter than the helium bivy... but I am still tempted, it's a versatile bit of kit... 7 hrs to think about it...
Aug 28, 2017
Mebaru
76
Nov 21, 2017
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djprCondensation is inevitable. You will need tarp to tackle it. Good read on the topic - https://40yearsofwalking.wordpress.com/2011/07/04/the-bivy-condensation-conundrum/
Nov 21, 2017
A community member
Nov 21, 2017
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MebaruYes, good point - my intention is to get a bivy for splash/wind protection under a tarp - so a air permeable fabric is the way to go it seems. i do not think that this bivy is made from an air permeable textile - pertex do make one, but this isn't it.
Nov 21, 2017
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