Dress in a black shearling jacket and jeans to create an interesting and modern-looking casual outfit. Hesitant about how to round off? Add black and white athletic shoes to the mix to change things up a bit. Putting together a pulled together outfit can be tricky on its own. Add extra cold temperatures into the equation, and the whole thing becomes all the more difficult. Don't despair, this here is your winter style inspiration. And if we're talking casual style for 30-something guys, this ensemble is ideal.