One of spring's most unexpected trends is the return of track pants - and if you're confused on how to style them outside of the gym, Hilary Duff has just given Us some ideas. The singer showed off her laid-back, cool mom style in a black and white pair. My favorite thing about the look? At just 5'2", Duff proved that track pants can be a perfect pick for petites, no tailoring required. Duff was recently spotted in the comfy pants while walking in Los Angeles.