bivvybag

plural bivvybags · alternative bivvy bag

1. A lightweight, durable, waterproof bag, somewhat larger than a sleeping bag, that acts as an alternative to a tent.

   They are indeed an exciting and challenging place for two-day or three-day expeditions with bivvybag or lightweight tent.

   2019, Ronald Turnbull, Walking the Galloway Hills

   2 more examples

   But while De Quincey came up with a prototype for a one-person tent, Stevenson invented the bivvybag, 'a sort of long roll or sausage, green waterproof cart-cloth without and blue sheep's fur within.'

   2011, Bill Laws, Byways, Boots and Blisters: A History of Walkers and Walking, page 142

   Normally these belts should contain ammunition, a foldable Hexamine cooker about the size of a Walkman, some kind of shelter — a poncho, bivvybag or spaceblanket – mugs, mess tins, waterbottles, an individualized escape kit containing useful items such as waterproofed matches, and dry rations for twenty-four hours.

   2011, Michael Asher, The Real Bravo Two Zero