Mr. Song Millilnery Kentucky Derby Wide Brim Hat With Signature Rhinestoned Bow - Q35 Medium-Large widtht iffany brim with hand tied knot bow. Subtle rhinestone detail. Head size is approximately 22" - 23" but has inner drawstring for sizing for a perfect fit. Crush/stain resistent all-season material. Click on 2nd thumbnail of offered color to view swatch sample.