January Jones models Grace Kelly style.

Photo: Todd Marshard

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The Shirtdress: Reinvented
The reinvented shirtdress in brown silk wool (Tadashi Shoji, $950) has short sleeves that knot and tie instead of roll up. It can be worn either cinched with an embossed leather belt (Michael Kors) or left open for when you want a looser feel. Necklace, Janis by Janis Savitt.

Bracelet watch, Van Cleef & Arpels.