North Carolina blue? Nike Dunk Low "Polar'' The Nike Dunk Low "Polar" shoe brought this time is entirely covered with leather. The color scheme is white as the base, with a light blue frame and Swoosh. The overall color scheme is very similar to North Carolina blue. The laces and tongue and other parts are all made of white, continuing the northern style Kalan always has a simple and refreshing appearance, and the fresh color matching is versatile enough for daily use!