Grandma's Bonnets

Ruby, my husband's grandmother, wore these bonnets in the garden while she worked. They hung by her door ready and waiting to be worn. She knew the value of not getting the sun on her face and neck. They have slats in the front, so that the brim doesn't droop into her face. To me they are reminiscent of what would have been worn on the wagon trains going west. I can picture the women of old wearing these outdoors. What do you wear to keep the sun out of your face?