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Write a review for Sierra Designs Navassa Bivy - Discontinued
*Please Note: Both colors and patterns are for general reference only. Colors may vary from computer to computer.
This a decent bivy except it would be
better if the zipper zipped from both
sides and met in the middle. This way
you could zip it half way down and your
face out- the way it is now, the zipper
zips from one side to the other- so the
only way to zip it half way is to be
vertical down half your face (if that
The bivy was great on a non-
raining night. The next night
it poured for a solid hour,
and by the time I went out to
get into it for some rest, the
inside had about a gallon of
water in it, soaking my
sleeping bag. Ended up
sleeping in a nearby cabin. I
ensured that everything was
locked down and zipped up, so
I know that the material let
the water in. Im not
displeased entirely, it was a
pretty intense rain, and I
shouldnt expect it to be 100%
waterproof over the extended
amount of time. In a light
rain, I believe it would fair
fine, but I would not depend
solely on it to keep you dry
in a rain storm.
While the bivy fabric is intended to be waterproof, the zipper is not. In this case it is likely that the heavy rain made its way into the bivy through the zipper. You can easily test the fabric for waterproofness. Fill a jar with water, lay the material over the jar (outside of material toward inside of jar), rubber bad the material tightly around the lip of the jar and turn the jar and material over to check for moisture coming through the fabric.
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