This season, the sexiest pair of jeans you'll own is the flare leg. Need proof? Just check out a couple of Fashion Week's chic street-stylers and a few of our favorite celebs — Olivia Palermo, Heidi Klum, and Rachel Zoe — all rocking their respective versions of the flare. It's a little more '70s rocker than the wide-leg, and we love how it hugs in all the right places. For now, play up the retro vibe with a shaggy fur topper, or play it down with something sleeker; then, when warmer weather hits they'll look just as cool with a floral tank or a boho top like Heidi's.

From left to right: street style, Olivia Palermo, Heidi Klum, Rachel Zoe, street style

Street style photos courtesy of Greg Kessler