What is the fashion for this summer?

I'm not a follower of fashion but want to start looking good.

What colours are in? What would you recommend for men? What nice shirts or going out clothes do you go for?

Thankyou.

Updates
1 mo
Thanks for your replies.

I have seen some nice shirts with pastel greens, yellow and reds that I think could look good in the summer.
I'm often dressed professional so want something to layback, head to the beach with.
What is the fashion for this summer?
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