It's so hot in summer that people who watch it feel refreshed and comfortable.
Just wear something simple.
T-shirt plus jeans or pants will do.
White is a good color to match.
That lapel has a cardigan in front, a simple LOGO on the left chest, and nothing else. It's very tasty.
With a pair of casual pants, you can wear beige, with big trouser legs or dark blue and dark gray.
Camouflage pants are also ok.
If you feel monotonous, you can add some simple accessories.
If you have a pair of sunglasses, silver jewelry will do. The sunshine in summer is very strong. What's the big deal? Ask me.