Oh, Olivia. How do you make fall layering look so effortless? This photo was actually snapped on a chilly spring day as the style icon walked her pup in New York City but it's totally on point this season, too. Start with a neutral base - gray menswear inspired coat, leather(ette) leggings - then add colorful accessories like a maroon crossbody bag and scarf. Hi-top sneakers and a chambray shirt tied around the waist finish this put-together Downtown look. Read on to get it for less...