SOL Thermal Bivvy - The SOL Thermal bivvy offers more versatility than traditional emergency sleeping bags - the extremely durable fabric resists rips and tears, and thanks to its soft face and aggressive side-venting, it can be pushed into duty as a stand-alone sleep system in warmer weather. Ideal for outdoor users looking for an emergency shelter that can become a regular part of their gear arsenal. 80% Heat reflectiveResists ripsSize: 36"x84"Weight: 9.1 oz.