The Phyllis Air Raid Suit is a Wearing History Resto-vival pattern based on a rare original extant pattern from the 1940’s. These were also called “Siren Suits”.
The original description reads:
“A well-fitted one piece air raid suit or coverall that’s easy to slip into. You’ll find it a most suitable costume for defense work and outdoor activity.”
7 sizes for bust 75-115 cm = 30-43″ included.