The royal baby is already wearing hand-me-downs from George and Charlotte

He may only be a day old, but the new royal prince is already donning his siblings' old clothes

In case you missed it (and we know you didn't), Prince William and Kate Middleton welcomed their third child into the world yesterday.

Their son, who is fifth in line to the throne, was born just after 11am yesterday morning, with the news announced to the world two hours later.

That evening, we were finally treated to the first glimpse of the baby prince, with Kate Middleton wearing a touching tribute to the late Princess Diana.

As yet, we've no word on the baby's name, but we should hear news of his unique moniker over the next day or two.

Although he's only a day old, he's already making the most of hand-me-down clothes his siblings Prince George and Princess Charlotte – like so many third-born children all over the UK.

The white shawl in which the newborn was wrapped up is reportedly the very same blanket that both his older brother and sister wore when they left St Mary's Hospital, according to Hello! US.

It's a long-standing tradition that royal babies all wear the same white blankets when they leave the hospital for the first time, and has been ever since Prince Charles' birth almost 70 years ago.

Made by Nottingham-based company, GH Hurt & Sons Ltd, the open-knit shawl worn by George, Charlotte and their baby brother retails at £68.

The company has now implemented a 'pre-order' policy for the soft white shawls following a huge surge in popularity after the baby's birth. It just goes to show that even royal babies impact the fashion industry...

We're fairly sure this is just one of many outfits the new royal will pinch from big brother George over the years.

Back to waiting on news of the name, we guess...