Note: The pictures show a previous version of the bivy. The current version's apexes are closer to the ends (less slope in head & foot walls), and the ridge has a slight curvature. See our Bug Bivy for pictures that represent these changes.

Description

Simple, fully enclosed insect protection with a tub-floor and wind-resistant upper.

The Wind Bivy is a good option for the shoulder seasons and cooler weather when you want to block breezes, as well as in locations with blowing sand. The woven, wind resistant material used for the upper provides high breathability and good transparency for seeing out, while a DWR treatment provides additional splash protection. Note that since the material restricts some airflow, the bivy will have less convective heat loss and may become stuffy in warmer or more humid weather. In such environments, our Bug Bivy would be a better choice.

"Y" Zipper provides entry from the front, top, or either side
Unzips all the way to the front corners to improve access
Curved ridge to reduce slack - NEW!
Upper material maintains visibility to the outside world
Highly breathable, yet wind resistant upper
Splash resistant upper
C6 PFC Free DWR treatment on upper is more eco-friendly than traditional DWR
Silpoly Tub-floor (HH > 4500mm)

We've recently moved the apexes further forward and rearward to reduce the chance of the upper interfering with your face and feet.

The bivy is best used under a-frame style tarps with the points above the head and foot suspended off of you. Create a tub-floor by clipping the top corners of the floor to your tarp. If you prefer to keep things simpler, just let the bivy drape over you, maybe suspending the front apex to keep the netting off of your face.

*When paired with our Cirriform tarp, the longer option is best paired with the longer Cirriform.

Partners well with our:

Made in the USA from imported materials.

Specifications

Weights

Bivy

Standard Length
Smaller: 204g | 7.2 oz
Bigger: 234g | 8.3 oz
Longer Length
Smaller: 215g | 7.6 oz
Bigger: 249g | 8.8 oz
Stuff sack: 6.5g | 0.23 oz

Included rigging

18' of 1/16" shockcord: 13g | 0.46 oz
7 Clips: 6.8g | 0.24 oz
3 Barrel cordlocks: 1.8g | 0.06 oz
Note: Rigging for connecting to your tarp is included, but you will need to install it. You will likely not need to use all of the shockcord.

Waste:

Landfill waste: not available
(Average amount of landfill waste produced from in-house operations.)

Dimensions

Smaller size

Width at head: 32" | 81.3 cm
Width at foot: 25" | 63.5 cm
Length (regular): 84" | 213.4 cm
Length (long): 90" | 228.6 cm
Height at head: 20" | 50.8 cm
Height at foot: 16" | 40.6 cm
Tub height: 4" | 10.2 cm

Bigger size

Width at head: 36" | 91.4 cm
Width at foot: 30" | 76.2 cm
Length (regular): 84" | 213.4 cm
Length (long): 90" | 228.6 cm
Height at head: 23" | 58.4 cm
Height at foot: 17" | 43.2 cm
Tub height: 6" | 15.2 cm

Materials

Tub-floor

20D SilPoly
(Polyester with siliconized coating)
Hydrostatic Head: 4500mm

Upper

20D Monofiliment Nylon 6
Mesh weave
C6 PFC free DWR
Air permeability: ~1000 CFM
Zipper: YKK size #3

Stuff Sack

20D Monofiliment Nylon 6
Mesh weave
C6 PFC free DWR
Air permeability: ~1000 CFM

Set-up & use

Download our PDF pitching guide here.

The tub-floor is intended to be suspended from its top corners by clipping them out to your tarp's corners using the included rigging. Suspend the upper off or your face and feet by clipping it to points above. For recommendations on how to install the rigging, please see the "Rigging" tab.

You may wish to seam seal the corners of the tub-floor. It shouldn't be necessary for most situations, but may be helpful should you find water pooling on the ground around you.

For simpler set-up when pitched without a tarp, consider using the Stand-alone rigging kit which allows the bivy to be pitch with only 4 stakes and your poles. For more information, please see the link.

Rigging

To get started

Included: Rigging (shock cord, mitten hooks, and cord locks) is included with the bivy. See the Specs for exactly what the bivy comes with.

You'll want to attach rigging to 6 to 7 locations on the bivy: top corners of the tub (4), apexes (2), middle of ridge (1)(optional on Ridge & Y-zip).

To determine the length of the cords: Lay the bivy under your pitched tarp. Then, measure the distance from the bivy's corner to the tarp's associated corner. Cut the shock cord to that length (the two front lengths should be equal, as should the two lengths at the foot).

To install the cords:

You don’t need to follow our method, but this is how we like to do it.

At the corners

Tie a loop on one end of the shock cord. We like to use a simple overhand loop knot.
Using a clinch knot, tie on a mitten hook to the other end of the cord.
Attach the loop end of the cord to the tub with a girth hitch.

At the apexes

Tie a loop on one end of the shock cord using an overhand loop knot.
Pass the free end of the cord through a cord lock.
Pass the free end of the cord through the small webbing loop at the apex.
Using a clinch knot, tie on a mitten hook to the free end of the cord.
NOTE: On the Ridge & Y-zip, webbing loops are found on both sides of the zipper at the front apex. Pass the cord through the loop on the side opposite the side you'd like to bivy to open towards.

Optional on the Ridge and Y-zip bivys

Repeat the process used for the apex lines at the middle of the bivy's ridge.

Stand-alone rigging kit:

For pitching the bivy on its own, we also offer a stand-alone rigging kit. This lightweight kit allows you to pitch the bivy with your poles and just four stakes. Please see the rigging kit's page for more information and instructions.

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