【Bivy Sack Emergency Blanket Sleeping Bag】-Compact and lightweight aluminized sided sleeping bag, can be served as thermal blankets, survival shelter, emergency bivy sac, field tested by Ex ...

A bivy sack is a piece of sleeping equipment that usually includes waterproof material. “The cause of death is asphyxia due to smothering,” the autopsy report says. “The manner of death is ...