bivi bag
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Bivouac sack — A bivouac sack (also known as a bivy sack , bivi bag or just bivy ) is an extremely lightweight, waterproof alternative to traditional tent systems. It is used by climbers, mountaineers, hikers, ultralight backpackers, soldiers and minimalist… … Wikipedia
List of climbing topics — This is a list articles related to climbing and mountaineering.See also: * Glossary of climbing terms for climbing jargon. * List of climbers for people associated with climbing. * List of climbing areas for regions associated with… … Wikipedia