Koola's hats Women Lady 3 Layers Sinamay Church Hats Tea Party Kentucky Derby Hat Hat circumference:54-57.5CM / 21.26-22.67Inch(can be adjusted by the sweatband inside the hats) Size details:Diameter*Heigh*Hat Brim:42*10*12CM Colour:White (The colour may be a little difference with the real item because of thr monitor setting) Material:100% Organza Hat care: Dry clean only ,pls hand on when you do not wear it for keeping the hat shape