Eva Mendes - Sienna Miller - Ralph Lauren
Credit: INFphoto; Stefania D'Alessandro/WireImage; Courtesy of Ralph Lauren

We loved Eva Mendes's classic over-size Ralph Lauren shades when she wore them in Italy over the summer, but when style-setter Sienna Miller was spotted in N.Y.C. wearing the pink version, we had to get the scoop! The wire frames come in light gold and bronze and for the more fashion-forward—fuchsia and turquoise! Olivia Wilde and Julianne Moore have been spotted in the shades too. Take a cue from Mendes and use them as a headband for double the style.

Ralph Lauren Collection Sunglasses, $190; call 646-638-0684.