This listing is for one size medium Sierra Boater style Hat in Ivory. This wide brimmed hat is trimmed with vintage gold patterned ribbon from the 1950’s. This hat is made with 100% Australian wool and is accredited with the highest sun protection rating given to fabrics. UPF 50+Australian tested. Brim measures 10cm/3.94 “ Please note-due to the light color and nature of the wool dying process some flecking or marks may be present in wool. This hat does not have any noticeable marks that I can see but if you are concerned, please let me know and I will look more closely There is a small indentation mark at top of the hat shown in photos. This can easily be steamed out. Please see photos for more details and size guide