Prince George rocked a similar look to mum Catherine, Duchess of Cambridge during an outing with father Prince William and sister Princess Charlotte to an equestrian event near their home at Anmer Hall on Saturday, 28 May. The family wore several shades of blue as they enjoyed a picnic with friends.

The Duke and Duchess of Cambridge looked relaxed, dressed down in jeans and trainers at the Houghton International Horse Trials at King's Lynn, Norfolk along with their two-year-old son and one-year-old daughter. Kate sported a white and navy Brenton striped shirt while playful son George wore a matching sweater with his signature blue shorts.

Meanwhile, the youngest royal, Princess Charlotte, matched her father with a pale blue ensemble. The little princess finished her outfit off with a blue hair bow. Prince William skipped the stripes and instead chose a pale blue cotton shirt.

According to the Mail Online, the young couple was seen cuddling their two children, with William carrying George and Kate keeping Charlotte closely in her lap. Kate was later spotted wiping George's face after their picnic.

An onlooker told PEOPLE Magazine that the royal family was "just hanging out at the horse trials with a bunch of friends." The family watched the event with their friends, James Meade and his wife Lady Laura Marsham. The group watched as friend Harry Meade participated in the trials. Mail Online noted that Harry and James, William's Eton schoolmate, are the sons of Britain's most successful Olympic equestrian, Richard Meade.

"They all sat with the kids by the grass beside a lake with all the public," the onlooker said. "They were literally just having an ordinary day out, sitting on the grass in jeans. Charlotte was running around. She's little but she's a good mover!"

The source added: "The children were playing about and running around while they sat there eating cake off paper plates. William was eating cake off a paper plate just like anyone else."

The event, which was celebrating its tenth anniversary, brought in hundreds of riders, including overseas competitors. Some riders even participated in a cricket match for one of Prince Harry's favourite charities — Walking with the Wounded.