Bivvy Bags & Poles

The bivouac sack or more commonly known as the bivvi bag is a relatively simple bag made from a waterproof and lightweight fabric under and outer layer that's designed to go around both you and your sleeping bag when sleeping outside
Designed to protect your sleeping bag but also keep you dry too, they can be pulled around you or your bag, propped up by a bivvy basha pole or secured to a branch or tree to provide a tunnel to sleep inside