The overall styles were similar with a few differences. The cut of the blazers worn by most of the younger men was short and they had one more shirt button undone than I did. They also wore very pointed brogues, what decades ago were called "winkle pickers"; not my style at all. Most wore their trousers long, rather than with turn-ups. Despite these small differences, the picture illustrates that fashion for all ages is generally centred on well-tried classics - here chinos or jeans, blazers and shirts.
I was wearing a brown linen jacket (usually buttoned up) and tan Loake Chester brogues. I discussed the blue brown colour combination a few months ago - see here. These colours were brought together by an old Liberty silk pocket square, pictured below.