Bivy Sack





Introduction: Bivy Sack

A bivouac sack (also known as a bivy sack, bivi bag or just bivy) is an extremely lightweight, waterproof alternative to traditional tent systems. It is used by climbers, mountaineers, hikers, ultralight backpackers, soldiers and minimalist campers."

Bivy sacks keep you warm while making a light weight waterproof covering for your sleeping bag.

Oh and this is in the stay warm contest so vote for me!

Step 1: Materials

What you need:
~Sewing machine
~3 yards of Gortex
~3 yards of Black taffeta

Step 2: Step 1

Cut both fabrics to 2.5 yards by 40 inches.

pair up the fabrics with the white side of the gortex faceing out. Sew 1/2" away from the edges.

Step 3: Step 2

Turn the whole thing right-side-out and sew in some zippers. I used a 30" and a 8" zipper.

You could also use velcro but I hate it when things get stuck in it.



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    Please be positive and constructive.





    So how is this waterproof?

    Excellent design. I didn't know you could buy Goretex straight. Is it durable?

    goretex by itself is NOT durrable which is why it is faced in most apps.   it needs a facing if used in a coat and if I wanted to use it in a situation like a Bivy I'd line it and cover it and use it for an interliner.   FWIW, kitty

    If your in the UK check these guys out. I don't think Gore will sell Gore-Tex to any Tom Dick or Harry but they seem to have a range of suitable looking fabrics.

    I don't get why you have put the black taffeta in on the bottom. Surely as a bivy bag it needs to be breathable and water tight all around you. I'm assuming taffeta isn't water proof or breathable.

    I don't get what the lower eight inch zipper is for?

    Sometimes it gets moist/hot/stickey inside a sleeping bag. My sleeping bag has a foot zipper and i made one for this also.

    very nice ive seen Bivy sacks for $99.00 USD how much did you spend