The myRaceKit Emergency Foil Blanket is an essential piece of equipment and a key piece of compulsory kit for ultra runners and additinally for hiking outoor spots in fact anyone exposed to the elements for long durations. In cases of emergency the blanket is wrapped around the body to keep the core temperature at the correct level, reflecting 80% of radiated heat making it suitable for incidences of extreme cold.Emergency foil blankets are windproof and waterproof as well as being highly light reflective, this blanket is a must have when pursuing extreme activities.