Royal fans spot very special detail in adorable new photograph of Prince Louis

Royal fans have spotted a very sweet detail in an adorable new photo of Prince Louis.

• A very special detail in the latest photograph of Prince Louis has been pointed out by royal fans.
• Prince William, Kate Middleton and the Cambridge children met with Sir David Attenborough for a screening of his new documentary and the images were shared on the Kensington Royal Instagram account.
• This royal news comes after it was confirmed that another royal baby is on the way.

The Duke and Duchess of Cambridge recently released a new image of their children, Prince George, Princess Charlotte and Prince Louis, from the moment they met with Sir David Attenborough.

Prince William, Kate Middleton and the three royal little ones met with the 94-year-old naturalist in the grounds of Kensington Palace earlier this month following a screening of David's new documentary, David Attenborough: A Life On Our Planet.

Prince William and Duchess Catherine are both featured in the programme that is set to air in October and Sir David made sure to meet with the Cambridge children and even gave Prince George a very special present.

After a photo of the lovely moment was shared on the Kensington Palace Instagram page, royal fans couldn't help but notice that two-year-old Prince Louis was wearing one of his older brother's hand-me-downs for the occasion.

Little Louis was dressed in a £65 merino wool jumper in blue from Wild and Gorgeous, that was once worn by seven-year-old Prince George when he was a toddler.

Future King Prince George wore the adorable piece during the Cambridge's tour of Canada back in 2016 - before Prince Louis was part of the family.

Prince George sported the sweet blue sweater with a pair of red shorts and knee socks, while his little brother wore it with a pair of navy shorts and navy socks. Too cute!

While the original jumper has sold out already (we're not shocked), there's plenty of similar dupes available to buy so you can dress your little one just like the Cambridge princes.

Half-Zip Jumper Navy Blue Marl from Boden

This adorable wool sweater from royal-approved brand Boden features the same half-undone neckline as Prince George and Prince Louis' jumper and is the perfect cosy piece for keeping little ones warm this winter.

Tipped Button Through Cardigan from Next

This sweet little navy cardigan features similar striped patterning to that one Prince George and Prince Louis' shared sweater but buttons all the way down for a seriously smart but still super cosy look.