Save up to $30 on a two person bivysack.
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Using some pre quilted hollow fiber insulation and some Camo surplus nylon, sewed up a half bag. Fits over my down bag and ties to the side loops so it won’t slip off in the night. Allows extra insulation and weather resistance with minimal weight. My down jacket can serve as insulation on the top half.
Weighs 17 ounces.
Keeps wind, bugs, dirt off you and off of your nice down sleeping bag. Protects your inflatable sleeping pad and you from the damp ground. Great for Scout troops and schools, and those hard on equipment light, simple, inexpensive.
Super breathable top of 1.1 oz ripstop nylon. Waterproof bottom of silicone coated 1.1 oz ripstop nylon. Olive or Marpat digital woodland camo top, black bottom.
Drawcord closure at top. No zipper to wear out, you can draw it around your face to keep out drafts (especially nice for quilt users).
7.15 ounces in weight (7.4 with included tiny stuffsack) Roomy girth of 72″ from head to elbows, then tapering to 26 over it’s 85″ length (from opened top to heel). Drawn closed measures 80″ to heels. Squared footbox is 10″ high. This gives a 6 ft tall person 8″ total extra for your bag to loft on either end or makes it useable by taller folks in warmer weather.
Stake out loop at bottom to keep it in place when you are out of the bag. Reinforced tie out in middle of the top panel. Tie it up to keep the fabric off your upper body for more ventilation or bug resistance.
Made in the USA of USA fabric. Just $55 with free shipping in the US.
Get em here http://shop.bivysack.com/Bivysack-Bargain-Drawcord-Closure-1BivyBargainDrawcord.htm
“This bivy is great and just what I was looking for and affordable, water resistant yet breathable bivy that will work really well for my 3 season sleep system. After using it quite a bit I really have come to like the draw top closure and not having to worry about an ultra–light zipper snagging on the fabric. It is very simple and does exactly what I need it to do.”
Read more at
one with cross chest zipper $45 postage paid
Regular length with room for thick mattresses.
Olive silnylon 30d waterproof fabric on bottom.
Silver grey durable water repellent 30d top.
Noseeum netting at face.
#3 cross zipper with two double sliders.
Line Loc 3 to pull out fabric over face.
Tie out at head and at foot.
74″ wide at chest
88″ total length flat
Weight chest zipper version 7 oz.
Needs the seams bound, serged or heat seared to prevent fraying.
Great price for a roomy light bivysack if you can do a bit of finishing.
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Now here. New bivy with side zip and room for a Neo Air pad along with a thick down bag and you.
Large stuffsacks to hang your food out of reach of varmints. Custom made for school or troop. Photo shows the extra large version made of 1000 denier Cordura . Holds about two weeks worth of dried food. Comes with webbing and double pass nylon buckle so only one bag need be detached at a time from your hang. Retro-reflective web on bottom so you can easily find your hang in the night to check for critters. Various fabrics available including 30d, 210d, 420d and 1000d coated nylon. Even Cuben Fiber if you have to have the lightest. Quantity pricing.
These four ultralight sacks with orange throw bags were made for Backpackinglight. Silnylon and Nanoseeum.
Used by Search and Rescue Skiers as a compact and quick tool to get a wet person out of the wind and wet. Wind and waterproof coated nylon sack stops evaporative and convective heat loss for the whole body in a super tough and compact 7 ounce package. The orange colors make a good signaling device and wind sock. Dimensions 85″ length, 71″ shoulder girth, 48″ inch foot girth. Can be compacted to fist size. Also works well as a roomy vapor barrier liner inside a sleeping bag to prevent condensation in the insulation. Silicone coated 30d type 66 nylon in either blaze orange or black. Group discounts available. Call 888-292-4534 for more info.
Don and his son tried out two of the large side zip bivysacks on subzero outings this past year.
One was made with the mil-spec 30d nylon with a Durable Water Repellent finish. Not a waterproof fabric, it has a hydrostatic head (measurement of water pressure at the point of leakage) of over 400 mm.
The other fabric was a 70d ripstop nylon with a pTFE laminate on the underside. This is considered a waterproof and breathable fabric with a hydrostatic head of 3000 mm.
Both sacks used a silicone coated nylon bottom.
I asked Don to let me know about condensation and other considerations he discovered on using the two bivys.
Here is his report.
OWARE BIVYSACKS FOR WINTER USE
I tested two of the OWARE large size winter bivysacks, one with the High Vapor Perm PTFE fabric and the other in Durable Water Repellent ripstop. fabric.
One night the temperature was a few degrees below zero Fahrenheit. My son and I used the two biviys directly on the snow after digging and firming up by snowshoe compression the base. The bivy sacks’ large size easily accommodated winter weight mummy bags and double sleeping pads. They were great for fitting in clothing and the many items such as winter mukluks or boots, clothing, etc that are needed close at hand on a winter bivouac. I was particularly interested in comparing vapor transport between the two bivy’s.
I found that there was very little if any appreciable difference in frost build-up between the HVP bag and the DWR bag. I think that vapor transport in far below freezing temperatures ceases to take place if the fabric isn’t close to a warm body, in this case the sleeping bag. When the vapor left the sleeping bag outer fabric and hit the cold bivy fabric, it turned into frost,.
I found that the black , textured PTFE fabric tended to harbor frost and snow within the fuzzy nap of the fabric on the top cover and was hard to thoroughly brush off.
I decided to choose the olive ripstop , very slick bivy as my winter bivy of choice.
The insect netting at the head was not just unnecessary for winter use, but actually a nuisance, as the netting accumulated frost from my breath and rained it down on my exposed face and sleeping bag. Much less of a problem (though still present) with a head opening lacking netting. I will probably remove the netting in the future since the Oware Large Bivy will be used by me for only winter use.
Another factor to be considered in purchasing gear is the sewing. The seams were all very tight and with no wander. All high quality zippers and material and made in America!
Buy them here