Beautiful beige wide brim floppy hat embellished with a lightweight gold chain around the dome. Diameter of hat is 16" Diameter of dome is 7.34", although not only does the dome have an interior sweat band but it also has strings inside the sweat band to tighten the dome size. SPF is 50 It's good for sun protection, the beach, gardening and other outdoor activities since the straw is breathable.