A black sweatshirt and blue skinny jeans are a good go-to combo to keep in your arsenal. For maximum effect, complement your outfit with ankle boots.
Black Sweatshirt with Ankle Boots Smart Casual Cold Weather Outfits
If you don't like spending too much time on your outfits, wear a black sweatshirt and navy skinny jeans. Add ankle boots to this getup to completely jazz up the getup.