If you're looking for a casual but also totaly chic getup, marry a black puffer jacket with a turtleneck.
Black Puffer Jacket with Turtleneck Smart Casual Cold Weather Outfits For Women In Their 20s
The versatility of a black puffer jacket and a turtleneck means you'll always have them on permanent rotation. Ramp up the appeal of this outfit by slipping into a pair of black leather ankle boots.