If you're looking for an off-duty and at the same time sharp look, consider pairing a dark brown crew-neck sweater with a white long sleeve shirt. If not sure as to what to wear on the shoe front, complete your outfit with a pair of brown leather casual boots. Figuring out a killer combination can be challenging on its own. Enter uncomfortably cold temperatures into the equation, and the whole thing becomes even more difficult. Fear not, this here is your winter inspo. Like this idea for your styling rotation as a 30-something Millennial guy?