The details Straight neckline. This is a deadstock fabric made from 100% Polyester. Deadstock is aging, excess, or over-ordered fabric. Dry clean only. More on fabric & care. Fabric This is a deadstock fabric made from 100% Polyester. Deadstock is aging, excess, or over-ordered fabric. We buy verified aging, leftover, and over-ordered fabric from factories, other designers and fabric warehouses, called deadstock. This allows us to reuse and divert these materials from the landfill and into your closet. Sustainably made in Vietnam. Dry clean only.