The Mylar Rescue Blanket is an incredibly versitile, lightweight, and cost-effective piece of gear to have on hand. It has a number of uses ranging from treating against shock, keeping warm, providing shelter, signaling for rescuers, entertaining toddlers, and more.
For the price and utility, this is something that should be in everyone's kit.
 
- Retains/reflects 90% of body heat
- Waterproof and weatherproof
- Size: 52" x 84"