Summer's Hottest Hats

Not just for bad hair days, the toppers Jessica Alba, Ashlee Simpson and more wear keep them looking and feeling cool

MIRANDA KERR

Why we love it: An ivory fedora with black grosgrain ribbon gives a simple outfit a major dose of chic (as if Miranda needed any more of that).
Where we'd wear it: While running errands or spending the afternoon outside. (You don't get skin like the supermodel's by baking it in the sun.)