The Shield Bivi is a camping sheet that completely protects your sleeping bag against condensation inside a tent or in snow pits. A Pertex® Shield fabric and taped seams ensure complete water and windproofing. Our bivy works extremely well as an additional protective layer and due to its low weight can serve as an emergency bivouac in the event of any unforeseen situations. This sheet is suitable for all Cumulus® sleeping bags, including our longer versions.