SOL® Escape BivvyThe SOL Escape Bivvy is a revolution in backcountry, survival, and emergency shelters, and provides a combination of dry warmth, water resistance, usability, light weight, and small size that no other product on the market offers. The Escape Bivvy is constructed of a proprietary spunbonded olefin fabric with green color on the outside and metalized coating on the inside. The metalized coating reflects body heat back to the user and traps body heat