Dakine Nitrous Cold Wax Our Nitrous Cold Wax is a quality blend of paraffin designed to improve ski and snowboard speed, and formulated to perform especially in cold weather conditions. Optimally designed for use as a hot wax, with an iron, we also made sure it would work as a rub on. Because let's face it, sometimes you don't have time to use an iron. And other times you just don't have an iron. Hot waxing recommended, but can also be rubbed on Blended formula provides long lasting speed in a variety of conditions PFC-free (free of perfluorocarbons) Choose Cold for temperatures below 20F (-7C), Warm for temperatures above 26F (-3C), or All Temp for all snow conditions