The Zephyr is a Gigi Pip women's rancher style with a teardrop crown and a stiff, curled up brim. Made of 100% Australian Wool. Size 57 S/M, with an adjustable inner band to tighten to fit. The S/M adjust from 55-57 cm which is the average woman's head size. The Zephyr has a 4" (11.5cm) crown + a 3.5" (8.8cm) brim.