Prince William melts hearts with key move on tour after fans give him hilarious nickname

has melted hearts by making an eco-friendly choice with his outfit on the first day of his tour in Cape Town - with him also being granted a hilarious nickname in the process.

, with the four-day visit taking place .

Taking to X, formerly known as Twitter, @Remisagoodboy - who are known for documenting female members of the Royal Family's fashion choices for adoring fans - appeared to give William an amusing nickname - 'WillYum'.

Making sure fans know they will be kept in the loop about William's style over the next few days, the account wrote on the social media platform: "I will do my best to keep you all updated on WillYum's wardrobe this week [angel-face emoji]."

The account later wrote that William was sporting the 2024 version of the poppy pin from the Royal British Legion's Poppy Shop.

It has emerged that William will be wearing and showcasing sustainable clothing throughout his appearances this week. His shirt at the first engagement is ECOALF - a Spanish sustainable fashion brand.

Clearly amused by @Remisagoodboy's post, one fan commented: "Thank you for using his rightful given name [heart-eyed emoji]."

Another commented: "Bravo Remi! Soo excited to see our Prince WillYum in his sustainable attire!"

A third wrote: "The shirt he was wearing was dreamy, really made his eyes pop @ecoalf #willYum."

Earlier today, November 4, William was pictured chatting to young climate activists in front of the iconic Table Mountain at the Earthshot Prize Climate Leaders Youth Programme in South Africa.

Ahead of the fourth annual awards ceremony on Wednesday, William will be staying in the African continent.

As well as the ceremony, the royal will be attending various other environmental initiatives and events as part of 'Earthshot Week'.