This combination of a black and white gingham overcoat and white jeans is hard proof that a safe ensemble can still be really interesting. Let your styling sensibilities really shine by completing your outfit with a pair of black leather casual boots. This getup is truly a must-have if you're looking to stay snug this winter season and look equally stylish. As you turn 30, you want to start dressing like an adult man. In this case, ensembles like this are a safe option.