For a look that's effortlessly sophisticated and gasp-worthy, rock a navy blazer with a white vertical striped dress shirt. Finishing with a pair of brown suede tassel loafers is the simplest way to bring an element of elegance to your outfit. If you're on a mission for a summer-ready look, this one is a savvy choice. Gentlemen who are curious how to wear modern casual dressing as you progress through your 20s, this outfit should answer your question.