Hats can be used for more than just warmth in the winter, though this is their primary function. Sometimes they are just good fashion accessories to adorn our heads. Here Hillary Duff shows us a free, natural style being topped by one stylish hat. On the occasion that you are having a ‘bad hair day’, a hat or bandanna is the solution for you. Hilary could wear either here as she has some nice, loose waves for them to hang from.