Great for protection in all weather conditions during emergency situations reflective material retains up to 90% of body heat to aid in the prevention of hypothermia and shock hi-visibility and reflects sun for cooling in hot climates when used as shelter large enough to cover from head to toe, yet folds small enough to fit in pocket great for use when hiking, backpacking, camping, traveling, or in bug out bag windproof and waterproof 52" x 84"..