The chopka is a wonderfully distinctive hat, based on a style worn by Polish cavalry men during the Napoleonic wars, when all things "a la militaire" were the height of women's fashion. "Walewska" is named for the Polish countess and confident of the Emperor Napoleon. In black silk taffeta, trimmed in gold, with ostrich plumes. Head size 22 1/2." Will fit a variety of sizes, depending on how high it sits on the head.