From top: Forever 21 tee, DC tee, Tilly's bag, and Calvin Klein shoes.

Photo: Donato Sardella/Getty Images

Kate Bosworth has been setting the standard for cool, effortless style for years, and she's still going strong. The 27-year-old wore a simple black-and-white graphic-print tee, skinny dark jeans, and a leopard-print Mulberry purse to a party for Mulberry in Los Angeles on Tuesday. We like how she kept her color palette minimal so that the purse could really pop. Her look, as always, is fresh-scrubbed, clean, and sophisticated -- LOVE. Is she too young to be a style icon? Because she's ours.

Dying to copy Kate's clean California style? We can help you do it for less. Tilly's makes a leopard-print bag with a chain shoulder strap just like Kate's for only $12.97. Pair your dark skinny jeans with pointy black kitten-heels, like these Calvin Klein Diema pumps ($90), and top it all off with a graphic-print black and white tee like this one from DC ($30) or this cloudy tunic from Forever 21 ($15.80). Happy shopping!