The Nike Dunk High Halloween 2021 is made of a soft synthetic leather upper, a durable foam midsole, and an outsole composed of solid rubber that is fused to the shoe. The shoe is finished with Nike Swoosh branding at the sides and tongue, as well as model-specific details on the tongue tab and insoles.

The Nike Dunk High Halloween 2021 features numerous entwined fibers densely packed together on the base of the shoe and assumes a white and green color.