Bivy Emergency Sleeping Bag Lightweight and Compact Survival Gear Better Thermal Protection Than a Mylar Space Emergency Blanket

The Bear Bivy won't add weight, and will help you stand up in the most dangerous survival situations over and over.

Best lightweight tool to prepare yourself in case you are stranded in the cold o r under bad elements.

Best offer on Amazon. Period. Emergency whistle, included online first aid class (sold for $20), solid stuff bag, limited lifetime warranty.