Beige Panama Women Sun Hat High Quality 100% High Quality Natural Paper Straw Hat circumference 22.5” Brim 2.9” You can adjust the size of the hat through the rope inside. UPF 30+ Sun Protection. Please Do Not Machine Wash Or Brush Wash. ONE Size fits MOST This floppy straw hat size is about 22 1/2 Inches ( 7 1/8 Hat Size ) Fits most ladies heads. Tightly woven for the quality and durability breathable and helps keep you cool in the sun.