For a look that's super straightforward but can be flaunted in a myriad of different ways, rock a grey turtleneck with navy jeans. To bring a little classiness to this look, throw in a pair of brown leather derby shoes.
Grey Turtleneck with Brown Leather Derby Shoes Smart Casual Chill Weather Outfits
If the setting allows a casual outfit, rock a grey turtleneck with burgundy chinos. A nice pair of brown leather derby shoes is the most effective way to bring a sense of class to this ensemble.