a powder developed for normal winter conditions from around freezing and colder. from the cold side this powder performs well until you have a “suction†feeling in the track, then the fc08x is a better choice. suggested base waxes are hf07x, hf07bwx or lf07x. the speed of the iron should be approx. 4-6 sec. on a skating or alpine ski. it’s highly recommended to have a good iron when working with powders. the powder should be ironed once.