For a relaxed casual look, rock a blazer with a v-neck t-shirt — these pieces fit pretty good together. Go ahead and complete your look with a pair of black leather tassel loafers for an added touch of polish. So so as you can see, it's a dapper, not to mention spring-friendly, ensemble to have in your transeasonal sartorial collection. This outfit proves that figuring out how to dress stylishly as a 30-year-old guy is totally doable.