ShellTA as a Bivi Bag

Open the ShellTA zips to form a large sheet and re-connect the front left poncho zip with the front right. Do the same with the other zips and you have a long tube.

Cinch the drawcord around the hood to seal it.

The bottom end can be sealed by elastic or cord, or the fabric folded and secured inside with press studs to discourage water ingress (this option increases venting). I usually secure the top end with press studs to form a large flap over whatever I’m using as a pillow. It is important that air is allowed into the bag so that you don’t suffocate. In wet weather leave the top fabric unfolded so that it is longer than the bottom, and covers the face. By breathing outside the bag you will significantly reduce the risk of condensation inside.