The Mountain Equipment UL DOUBLE BIVI is the larger version of the tried-and-tested Ultralite Bivis and offers enough space for two people. This compact emergency tent provides reliable protection from wind and adverse weather conditions and ensures that body heat is retained for longer. It is ideal when you have to spend an unplanned night outdoors, wait out a storm, or wait for rescue. Lightweight and space-saving when stowed in a backpack, this bivy can be a lifesaver in an emergency and should be a staple of any outdoor adventure.