I wear a Columbia Bora Bora booney II hat in the summer. It is ventilated so it allows air to circulate and the wide brim keeps my head, neck and ears from getting sunburned.
http://www.columbia....default,pd.html
How do you keep the hat on while wearing ear muffs? Do you use the cords on the hat, or some other trick?
I wear ear plugs in the summer.....