Very Warm Military US Army SUBZERO Extreme Cold Weather ECW Down GI Sleeping Bag Us Military Issue Extreme Cold Weather SUBZERO Sleeping Bag In Od Green We store these properly. Not in compression sack. They have full isulation. 84 inches long, 30in wide at the top and 14in at the bottom and weigh 8lbs. Made of water-repellent poplin cotton outer shell with 80% down 20% polyester filling. Mummy style bags with a draw cord hood.