The Duchess of Cornwall has worn her summery blue suit with three different natural hued straw hats:
Look #1: With an ecru straw sharply angled sidesweeping picture hat with large figure eight knotted bow worn to Royal Ascot on June 14, 2005
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Embed from Getty Images
Look #2: With a wide brimmed tan straw hat with gentle sidesweep brim, silk knotted bow and large pair of tan ombre feathers worn for Service of Remembrance and Dedication for former holders of the Victoria Cross on September 13, 2005
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Embed from Getty Images
Look #3: With a worn textured straw hat with vertical folded bow worn on July 19, 2012 during a Diamond Jubilee visit to the Channel Islands
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Which hat do you think pairs best with this suit?
Photos from Getty as indicated
Royal Hats 
I, too, questioned if it was the same suit Camilla is wearing. On clicking on the enlarged Getty images it clearly is, and I like it even more. The first hat is the most polished look imho, whilst the third image takes me to thinking it offers more sun protection. However, the suit is perhaps a tad too elegant for the hat?
I like the first hat very much. The feathers in hat #2 are pulling focus and hat #3 seems to heavy. I love the suit.
That’s a lovely suit and all the hats work with it. If I had to choose one, I’d say #3 just because it’s different from Cams’ usual choices.
Is that the same suit? In the last lot of photos the collar seems different – as well as being a more saturated blue. I like all the hats – she wears them so well!
That’s how much of a difference lighting can make (the last photo is outside, in full sunlight) but yes, it’s absolutely the same suit.
You’re the expert but I, too, wondered whether suit 3 was the same – not only because of the lapels but also because the dress has no “decolletage” and the jacket has four fastenings as opposed to two.
Look 2 is most elegant in my view since the tones and proportions work best; I agree with Jake that the shape of hat 1 is too exaggerated – almost cartoonish; look 3 works well but is not as refined as look 2.
The jacket fasteners indeed changed but the jackets are the same- there is very distinctive stitching down the sleeves that you see in each photo.
I like #2 best as it is the most balanced and flattering look for Camilla IMO. #1 is good as well, but I do find the shape of the hat slightly dated and exaggerated now, while I’ve never cared for the odd bow trim on many of these florentine/hemp straw hats from Lock & Co.
I agree with you regarding hat #2, and I will add the color is lovely with the blue suit.
I think they all look good. She has so many hats in the beige/white colour scheme it can be hard to tell them all apart, but these all bring something different.
At a push the first one, I think it’s the most polished look.
The first two hats are very similar, so it’s hard to choose between them. Like Bristol, I prefer the lighter look – both colour and texture – of those two hats with the blue suit, although the colour of the suit also looks more saturated in the most recent wearing, so it could be a trick of the light. They all look well on the Duchess.
I like both the first two hats, a familiar shape that Camilla wears well. The third hat doesn’t seem so different in theory, but the heavy texture makes it to me a less successful pairing for the suit.