Personal flotation devices (PFDs) designed for low temperatures offer increased thermal protection alongside buoyancy. These specialized PFDs often incorporate features like insulated linings, waterproof outer layers, and attached hoods to mitigate the risk of hypothermia in cold water. An example would be a float coat designed for offshore sailing.
Survival in cold water emergencies hinges on minimizing heat loss. Specialized PFDs provide crucial insulation, extending survivability and increasing the likelihood of rescue. Historically, traditional life vests offered minimal protection against cold. The development of insulated and waterproof PFDs significantly improved safety for individuals operating in frigid marine environments, particularly in commercial fishing and search and rescue operations.