This combo of a black crew-neck sweater and blue ripped jeans is on the casual side yet it's also dapper and truly dapper. On the shoe front, go for something on the smarter end of the spectrum by finishing off with a pair of black leather chelsea boots. Keep this combination in your head come warmer weather, and we guarantee you'll save a ton of time racking your brain for an outfit on more than one morning. This getup shows how to keep killing in casual dressing as a 30-year-old gentleman.