The Princess of Wales wore a Holland Cooper for her visit to RNAS Yeovilton Today.
The Royal Naval Air Station is in Somerset, and this was the Princess’ first engagement in her role as Commodore-in-Chief of the Fleet Air Arm. 
More than This BBC history.
The Princess of Wales visited one of the UK’s busiest military airfields, just weeks after the King made her Commodore-in-Chief of the Air Fleet.
Catherine was shown around Royal Naval Air Station Yeovilton in Somerset – where King Charles did his helicopter pilot training in 1974.
The Royal Navy notes “…4,300 military, military and civilian personnel, including MOD employees and permanent contractors, are employed on site. The air base also hosts a large support staff of the Defense Equipment and Support Organization, as well as the famous Fleet Air Arm Museum.
The princess began her visit to the air traffic control tower.
There, she put on a headset and spoke to a Wildcat helicopter crew in flight.
More than one History of the Royal Navy about the visit.
His Royal Highness’s introduction to naval aviation began with a roar as an F-35B Lightning ‘buzzed’ the Yeovilton control tower; The stealth fighters are the most advanced aircraft in the UK military arsenal and are currently operating aboard the country’s flagship HMS Queen Elizabeth during its autumn deployment.
The princess then visited a hangar and spoke with staff. Here you see her looking at a Banshee drone used by the Royal Navy.
We return to History of the Royal Navy.
Personnel from 700X Naval Air Squadron, normally based at RNAS Culdrose in Cornwall, showed the princess their Banshee drone – used to develop tactics to defend the country’s aircraft carriers from air attack.
“She was fantastic, genuinely interested, very personable and for me it was a great opportunity and a privilege to meet her,” said Lt. Commander Marcus Pennant, squadron commander.
Here you see her exiting a Merlin helicopter.
And a final part of the Royal Navy post.
Seaman Danielle Beckinsale, who maintains the Merlin helicopters which support Royal Marines operations, explained how busy her squadron was – currently deployed to the Middle East, preparing for a winter in Norway.
“I had never met royals before and I wasn’t sure what to expect, but she was very down to earth,” she said. “She was really, really nice, really genuine and interested in the role of an engineer.”
His final stop on base was the Wildcat Training Center.
The Princess learned about the safety equipment used by Royal Navy personnel. 
She tried on one of the inflatable life jackets.
More than THE Daily Mail blanket.
As she pulled on the seesaw, she closed her eyes and grimaced as the device inflated quickly and forcefully, as if in an emergency situation.
Looking a little taken aback by the rapid inflation, Princess Kate burst out laughing, before staff helped her remove the life jacket.
More than THE Daily Mail article.
After the exercise, Louise Evans-Hughes, a renowned survival equipment technician, revealed she knew exactly what was going to happen the moment the life jacket inflated.
She said: “I told the princess there might be a little noise because sometimes when the Velcro tears there is a little noise.”
“I think that’s why she was a little afraid to take it out. As soon as she pulled it, it bulged.
“I gave the princess the choice if she wanted to put it on or if one of my colleagues would put it on.
“I wasn’t sure if she would do it or not, but it was really nice to have her get her hands dirty and really get involved in what we’re doing and how the kit works.”
Captain Duncan Thomas, Commanding Officer of RNAS Yeovilton, said: “I am delighted and privileged to have welcomed Her Royal Highness The Princess of Wales to Royal Naval Air Station Yeovilton, at the start of what I am sure, will be a long and rewarding relationship in his capacity as Commodore-in-Chief of the Fleet Air Arm.
Kensington Palace released a video showcasing today’s visit.
Visiting RNAS Yeovilton for the first time as Commodore-in-Chief of the Fleet Air Arm.
Thank you to all the brave men and women who serve in the Royal Navy and Armed Forces. pic.twitter.com/fbLyvSgJ9r
– The Prince and Princess of Wales (@KensingtonRoyal) September 18, 2023
Now let’s move on to what Kate wore for today’s engagement.
The princess brought back her Holland Cooper Double-breasted twill blazer (£549) for today’s engagement.
The jacket has a slim silhouette; it is made in England from fabric 100% woven in the UK. It was worn for the first time in May 2021 in Scotland. I don’t know the designer of her pants or her top.
She also brought it back Gianvito Rossi Piper 85 pumps ($675). The black suede pumps feature a pointed toe and a 3-inch block heel. 
The style is widely available, including at Farfetch ($675), at Matches fashion ($680), and Gianvito Rossi ($795).
It looked like the princess was wearing the Anderson croc-effect leather belt that we’ve seen on multiple occasions.
The princess wore her Kiki McDonough Citrine Cushion Detachable Drops (£900) suspended from simple hoops. I’m not convinced they are simple Kiki McDonough hoop earrings (£500) which she once wore, pictured below right.
She also wore a Royal Navy Fleet Air Arm pin.
