These blankets are also referred to as Space Blankets, Solar Blankets, Safety Blankets or Mylar Blankets.  This Mylar emergency blanket is made of a single layer of polyester film coated with aluminium on both sides.  These blankets are for emergency and non-emergency outdoor wind, moisture or sun barrier use.  It folds for easy storage. 

• Emergency blanket retains 90% of body heat
• Solar blanket can be used as a ground cover
• Space blanket provides complete thermal protection from rain and snow
• Size: 84" long by 52" wide
• Thickness 0.01 mm or 0.0005 inches

Also see our Emergency Sleeping Bag