Prince Louis Proves Star Power Like Kate Middleton After $45 Sweater Sells Out

Kate Middleton and Prince William's third child, Prince Louis, is taking after his parents and older siblings when it comes to setting trends and selling products.

Middleton and Prince William celebrated Prince Louis' first birthday on Tuesday, April 23, by sharing photos of the toddler on the official Kensington Palace Twitter page. Prince George and Princess Charlotte's younger sibling looked happy and healthy as he frolicked in the garden of the Cambridge family's Norfolk residence, Anmer Hall.

In two of the photos, Prince Louis wore a red wool jumper and a Trotters romper with a Peter Pan collar that was reportedly a hand-me-down from older brother Prince George. The third snap, however, showed the royal prince posing in a blue sweater with a puppy motif from high street brand Trotters.

Prince Louis seemed to prove that the "Louis Effect," much like the "Kate Effect," is very real after his sweater sold out online less than 24 hours after the release of the little boy's portraits, according to Daily Mail. Originally priced at £44, Prince Louis' blue sweater was put on sale for £35 earlier this week.

The blue sweater with a cartoon puppy sewn on the front was described by Trotters as a "soft, warm cashmere mix" that is a "must have for layering this spring" on their website.

Prince Louis wore the sweater over another hand-me-down, a white collared top, giving the little prince an adorable but smart appearance like his dad Prince William.

Middleton seems to love shopping for clothes for her three children from Trotters as last year, Prince George and Princess Charlotte were also spotted wearing ensembles from the high street brand.

In July 2018, the eldest Cambridge children looked adorable in matching canvas plimsolls from Trotters which reportedly cost £26. At the time, George and Charlotte had joined their mother to watch Prince William compete in the Maserati Royal Charity Polo Trophy.