Emergency Mylar Blankets 4-Pack – Reflects 90% Body Heat, 52"x84", Windproof

4-pack of aerospace-grade Mylar emergency survival blankets. Each blanket reflects up to 90% of body heat and measures 52"x84" for full-body coverage. Windproof and waterproof. Doubles as a signaling device visible to rescuers. Folds to the size of a deck of cards. Weight: 1.4 oz per blanket. Single-use.