For some time I have been concerned about the tailoring standards these days and too often could complain about them.
Find a closeup of the pair of them and do some comparing.
First the collars on their shirts. William's is traditional where the points neatly hide the tie each side of the knot. The points of Charles' shirt collar are spread and the necksize looks too small so that the shirt is not as sharp as William's. I have noticed this style of shirt quite often these days.
Then compare the tailoring of the jacket lapels and collars. William's jacket is more conventional, so that the opening is perfectly aligned with straight sides. And the buttoning looks correctly positioned. Whereas Charles' gapes wide, sides are poorly aligned and the buttoning area looks quite out of control.
The "modern" tailoring has the jacket collars placed too high to the shoulder area and the lapels are usually skimpy and the front opening is usually curved tio gape open.
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