PRINCESS Kate and Prince William have shared an adorable new picture of their daughter Charlotte to mark the princess' 10th birthday.
The new snap, taken by mum Kate, shows an adorable Charlotte looking battle ready in a camouflage outfit and enjoying nature as she celebrates a double-digit age for the first time.
The middle child of Kate and Wills, and third in line to the throne, a beaming Charlotte donned the colourful outfit and a hiking bag.
In a post on Instagram, the Prince and Princess of Wales said: "Happy 10th Birthday Princess Charlotte!", alongside a heart emoji.
It's one of the rare times the public has been treated to a behind the scenes picture of the princess.
Changing with the traditional formal dress we usually see Charlotte in, the princess has shown another side of her life, similar to that seen in the past with her family.
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In 1986, her dad Wills and uncle Harry were pictured donning camo gear outside Highgrove House, aged just four and two respectively.
To celebrate her 9th birthday last year, it was reported the princess would have a "low key" birthday, with William potentially having stepped in to bake a cake while Kate was recovering from her cancer diagnosis.
The couple had also revealed a fresh picture of her last year for her birthday, which showed a beaming Charlotte posing in a garden wearing a floral blouse paired with a denim skirt, navy jumper and red cardigan.
This comes as it was revealed how Charlotte's outfits may have been more strategically chosen than first thought.
According to fashion expert Amber Graafland, Princess Charlotte is following in the footsteps of mum Princess Kate, 43, who “carefully considers” her outfits and “conveys messages” with them.
The style pro told Fabulous: “Princess Kate has perfected the art of effective communication through the language of clothes.
“Kate often uses her impeccable style to nod to her hosts on official visits.
“As Kate has become more comfortable with positioning Charlotte in the public eye, she has also started using her clothes to convey hidden messages.”
Late last month, the Prince and Princess of Wales shared a touching message as they celebrated their wedding anniversary on the Isle of Mull, just off the west coast of Scotland.
In a heartwarming post on Instagram, the couple paid their thanks to the locals for their "warm welcome" on their two-day visit.
