The Emergence Bivvy by Sol is a versatile bivy sack that can also be used as an emergency blanket, thanks to its aluminized interior that reflects your body heat to keep you warm. Weighing in at just 108 grams, it is made of reinforced fabric that is windproof, breathable, and resistant to water and abrasion. The Emergency Bivvy also features sealed seams, a safety whistle, and a drawstring that can be used to start a fire, making it an essential item for your bivouacs far from the beaten path and necessary resources.