Int ladies garment workers union. This piece is anywhere from 56-64 years old, in mint condition. Hooded, double pocket, zip up cover up, with a drawstring waist. Authentic and still bright, vintage piece from the 70's from a meticulous owner who loved and cared for her clothing.
See pics for measurements, looks like a small/medium to me. Happy to answer all your questions. This item is made of searsucker and white, cotton, vintage, made in usa.