Kate Moss's style is so natural, simple and effortless, and hence so easy to steal.

Take this striped sweater dress, for instance. These are everywhere at the moment: just add black tights (or leggings, if you dare), a pair of ballet flats like Kate's, or tall leather boots, sling on a belt if you need one, and you're good to go.
The sweater has ribbed cuffs, neckline and hem.
Kate's dress is by Juicy Couture, and you'll find it (in brown) for $298 at Saks.
If you can live without 100% cashmere, the River Island dress in the middle is £34.99.