I saw a lot of people wearing shorts, and those people coordinated shorts well.
College print T-Shirts with collar shirts inside is good comb.
This guy knows which size of cloth fits himself, so his look is simple and sophisticated. Rolling up sleeve is a good tip to adjust the length of sleeve and show his accessories.
I love military look. It's interesting that half part of his shorts is navy and another part is grey.
Material of his shits is linen or something? It looks cool and comfortable material during summer. Rolling up his sleeve, again.