Kate Middleton’s Runway-Worthy Maternity Dress Is $255—And Already Sold Out

For an expectant mother, Kate Middleton’s social schedule seems packed. After traveling with Prince William on a four-day tour of Scandinavia in February, the Duchess also attended the BAFTA awards and presided over the first Royal Foundation Forum (alongside future sister-in-law Meghan Markle). And earlier today, Middleton traveled to open the new offices of Place2B, a children’s mental health charity of which the Duchess is a patron, donning a daytime dress from go-to maternity label Seraphine that retails for just $255 (and is already sold out).

The midnight-blue dress, with its high-necked lace top, empire waist, and pleated skirt, could almost have been a more casual version of a straight-off-the-runway style by Erdem that Middleton wore last month to a cocktail reception in Stockholm. Exaggerated sleeves with a ruffle detail had an elongating effect similar to the Erdem's bell-like silhouette. Black Stuart Weitzman pumps played off the ribbon detail at the waist, neck, and sleeves, finishing the look with a classic, elegant, and quintessentially Middleton touch.

See this week’s best dressed celebrities:

10 Best Dressed: Week of March 5, 2018

WHO: Marion Cotillard
WHAT: Halpern
WHERE: At the Cesar Film Awards, Paris
WHEN: March 2, 2018

WHO: Marion Cotillard

WHAT: Halpern

WHERE: At the Cesar Film Awards, Paris

WHEN: March 2, 2018

Photo: Getty Images
WHO: Sasha Lane
WHAT: Céline
WHERE: At the A Wrinkle in Time premiere, Los Angeles
WHEN: February 26, 2018

WHO: Sasha Lane

WHAT: Céline

WHERE: At the A Wrinkle in Time premiere, Los Angeles

WHEN: February 26, 2018

Photo: Getty Images
WHO: Alicia Vikander
WHAT: Louis Vuitton and Dauphin
WHERE: At a screening of Tomb Raider, Berlin
WHEN: March 2, 2018

WHO: Alicia Vikander

WHAT: Louis Vuitton and Dauphin

WHERE: At a screening of Tomb Raider, Berlin

WHEN: March 2, 2018

Photo: Getty Images
WHO: Dree Hemingway
WHAT: Prada
WHERE: At the 2018 Film Independent Spirit Awards, Los Angeles
WHEN: March 3, 2018

WHO: Dree Hemingway

WHAT: Prada

WHERE: At the 2018 Film Independent Spirit Awards, Los Angeles

WHEN: March 3, 2018

Photo: Getty Images
WHO: Vanessa Paradis
WHAT: Chanel
WHERE: At the César Awards, Paris
WHEN: March 2, 2018

WHO: Vanessa Paradis

WHAT: Chanel

WHERE: At the César Awards, Paris

WHEN: March 2, 2018

Photo: Getty Images
WHO: Danai Gurira
WHAT: Christopher Kane
WHERE: At the fourth annual Hollywood Beauty Awards, Los Angeles
WHEN: February 25, 2018

WHO: Danai Gurira

WHAT: Christopher Kane

WHERE: At the fourth annual Hollywood Beauty Awards, Los Angeles

WHEN: February 25, 2018

Photo: Getty Images
WHO: Zoey Deutch
WHAT: Dior
WHERE: At the Dior Fall 2018 show, Paris
WHEN: February 27, 2018

WHO: Zoey Deutch

WHAT: Dior

WHERE: At the Dior Fall 2018 show, Paris

WHEN: February 27, 2018

Photo: Getty Images
WHO: Charlotte Casiraghi
WHAT: Saint Laurent
WHERE: On the street, Paris
WHEN: February 27, 2018

WHO: Charlotte Casiraghi

WHAT: Saint Laurent

WHERE: On the street, Paris

WHEN: February 27, 2018

Photo: Getty Images
WHO: Leïla Slimani
WHAT: Christian Dior
WHERE: At the César Awards, Paris
WHEN: March 2, 2018

WHO: Leïla Slimani

WHAT: Christian Dior

WHERE: At the César Awards, Paris

WHEN: March 2, 2018

Photo: Getty Images
WHO: Saoirse Ronan
WHAT: Prada
WHERE: At the 2018 Film Independent Spirit Awards, Los Angeles
WHEN: March 3, 2018

WHO: Saoirse Ronan

WHAT: Prada

WHERE: At the 2018 Film Independent Spirit Awards, Los Angeles

WHEN: March 3, 2018

Photo: Getty Images

Inside the Vanity Fair Oscar Party with Hailey Baldwin

See the video.