Originally developed for space missions to meet stringent requirements for light weight and effectiveness. Must-have safety tool for winter travel - keep at least one in every vehicle.

Features:

• Inexpensive, compact, easy-to-carry safety equipment for camping, car and emergencies
• NASA-developed technology uses thin metallic-polyester fabric to reflect body heat
• Reflects 90% of body heat back to you; waterproof and windproof
• Stores indefinitely - won't crack, peel, mildew or shrink
• Folded size just 4" x 2" x 1", unfolds to 84" x 36" mummy-style sleeping bag; 2 oz