One of the smartest ways for a man to style such a functional piece as a dark brown duffle coat is to pair it with white jeans. To bring a little depth to this look, introduce a pair of oxford shoes to the mix.
White Jeans with Oxford Shoes Smart Casual Chill Weather Outfits
For an outfit that's pared-down but can be dressed up or down in a great deal of different ways, wear a navy overcoat with white jeans. If you wish to immediately class up your ensemble with footwear, complement your look with a pair of oxford shoes.