Kiera Knightley always boasts effortlessly cool beauty and her Laggies premiere look at the Sundance Film Festival encapsulates just that. Celebrity hair stylist Kerrie Urban created Kiera’s messy, undone locks for the event, going for a “Sundance casual” feel. Here’s here step-by-step guide to achieving a similar style.

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• Kerrie began by applying Leonor Greyl’s Condition Naturelle mostly to the roots and then slightly misting it on the ends. “Most of the hold I wanted was at the root, so the ends just needed a touch to add some hold. This look was more beachy, so we wanted to give the roots more body and by lightly spraying the ends, the product protects the hair from the heat and gives a light hold for the iron.”

• Next, she roughly blow dried the hair using her hands to encourage natural wave. In two-inch sections, Kerrie curled Kiera’s hair with a 1-inch curling iron by wrapping the hair around the outside of the barrel in alternating directions.

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• Once the curls were finished, Kerrie broke them apart with her hands and shook them out. Then, to combat frizz and static, she put a couple drops of Leonor Greyl’s Serum de Soie Sublimateur in her palms, rubbed them together, and applied to the hair from the ends to mid shaft.

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• To set the look and keep her glam all night, Kerrie finished off with Leonor Greyl Lacque Souple hairspray. “I loved the light hold of this hairspray. We didn’t want anything too stiff or crunchy, and the Lacque Souple gave just the right amount of hold.”

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