siren suit

The siren suit is a one-piece garment for the whole body which is easily put on or taken off, originally designed for use on the way to and in air-raid shelters. The suit solved the problems of warmth and modesty encountered when seeking shelter during nighttime air raids in the United Kingdom during World War II. It was roomy and could be put on over night clothes quickly when an imminent air raid was announced by the sirens.