All things are pointing towards '90s grunge this season - just look to the runways of 3.1 Phillip Lim, Dries Van Noten, and Saint Laurent - and now, we're starting to see some of our favorite style stars sporting the look on the street. Case in point: Alexa Chung was spotted in London over the weekend looking nothing short of effortlessly cool in a black-and-white plaid Paul Smith dress cinched at the waist with a skinny black belt. This dress can easily teeter between polished and punk, depending on how you accessorize it, but we love how Alexa opted for the latter, styling her look with black chunky-soled oxfords and gray socks. Inspired? Channeling the same look is actually quite easy; all you need is a rad plaid dress and semitough footwear, like boots from Dr. Martens or old-school leather penny loafers. Shop Alexa's exact plaid dress, plus more affordable options, below.