A black biker jacket and black jeans? This is an easy-to-wear ensemble that any man could work on a daily basis. You could perhaps get a bit experimental on the shoe front and smarten up your look by wearing brogues. This look is a great idea when it comes to putting together a kick-ass ensemble for summer-to-fall weather. This getup should clear any doubts you had about wearing casual clothes as a gent in his 30s.