Prince Louis already dresses 'slightly differently' from his older brother Prince George

Louis, five, donned blue suede boots while George, 10, wore smart black patent shoes.

In addition, the two princes walked side-by-side on Christmas Day at Sandringham as they joined other members of the Royal Family.

Prince Louis looked brilliant in tartan trousers from Trotters Childrenswear and a navy coat from the same brand.

Meanwhile, Prince George looked dapper in a navy suit consisting of a blazer and tie.

Personal stylist Bella Hignett spoke exclusively to GB News to explain why Princess Kate, 42, dresses her sons so formally.

She explained: "Kate dresses the two princes in suits as this is traditionally what the royals have done.

"They, like their parents, need to dress appropriately for the events they attend.

"Outside of these occasions, they can be seen in much less formal outfits.

"Kate tends to favour them in navy which always looks extremely smart."

According to the stylist, Kate and William's youngest child takes a "different" approach with his style compared to his older siblings.

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Hignett added: "Louis, as the youngest boy, tends to wear slightly different outfits, even if his older brother is in a suit.

"He was seen in some tartan trousers at Christmas. In 2022, Louis wore shorts and knee-high socks, which is a tradition."

The Princess of Wales intentionally dresses her children a certain way, according to Hignett.

She claimed: "Also, Kate likes to dress all of her children in a classic timeless way, rather than in clothes that draw attention to them."