For something on the classier end, try this combo of a navy turtleneck and black skinny pants. Black leather knee high boots look right at home with this look.
Navy Turtleneck with Black Leather Knee High Boots Outfits
For something more on the casual and cool end, reach for a navy turtleneck and an aquamarine skater skirt. And if you need to effortlessly glam up your ensemble with a pair of shoes, slip into black leather knee high boots.