British Army New Genuine MTP Camo Goretex Waterproof Survival Bivi Bags

Light Weight

Some bivy sacks weigh less than one pound, which make them extremely light and portable. When compared to a tent, a bivy sack is a much more attractive option when venturing out into the wilderness, especially because you need to carry your sleeping gear on your back.

Don’t take up much room

With a bivy sack during camping, all you need is a flat surface big enough for you to lie down on, whereas, if you are using a tent, you would need a large enough area to place your tent as well as a way to secure the tent to the ground to prevent it from blowing over during inclement weather.

Waterproof

Bivy sacks are also waterproof, providing you with better protection against the elements. Ideally, you should use it as a sleeping bag inside of a tent. They will prevent your sleeping area from getting wet should your tent spring a leak during a rain storm.