The Primacare HB-10 Emergency Mylar Thermal Blankets are an essential survival tool for anyone venturing into the great outdoors. This 10 pack of reflective, waterproof blankets measures 84" x 52", designed to retain 90% of body heat, making them perfect for emergencies, camping, and first aid scenarios. The durable mylar construction ensures you stay warm and comfortable while also providing insulation. Whether you need to protect against the cold or reflect heat from the sun, these thermal blankets have you covered. Lightweight and compact, they're easy to carry in your backpack or emergency kit. Stay prepared and safe with these must-have blankets!