06/17/2014 10:24 EDT | Updated 06/19/2014 01:59 EDT

Kate Middleton, Duchess Of Cambridge, Shines In Classy Blue Coat (PHOTOS)

Just a day after going casual with jeans and a shirt with baby Prince George, Kate Middleton stepped up her style with fancy headwear and a long blue coat.

The Duchess of Cambridge wore a powder blue Christopher Kane coat (she wore the same coat during a palace reception in 2012), L.K. Bennett nude heels and a matching blue hat during the Order of the Garter ceremony at Windsor Castle on Monday.

Dressed in summer's finest pastel, the 32-year-old kept her makeup minimal while her hair looked flawless, as usual. She was joined by Sophie, the Countess of Wessex, the Queen, Prince Charles, and even caught a quick glance of husband Prince William who was dressed in a traditional robe.

kate middleton order of the garter service

The ceremony marked the beginning of Royal Ascot week, known as Garter Day, the senior British Order of Chivalry founded by Edward III in 1348. There are a total of 24 Garter Knights (Prince William was made a Knight of the Garter in 2008) including members who have held public office or served the Queen personally, according to the Daily Mail. Prince Harry even made a rare Ascot week appearance on Tuesday for the occasion, reports The Guardian.

What do you think of Kate's coat? Let us know in the comments below:

Check out more photos from the event below:

Kate Middleton's Best Fashion Moments