Swix HFBW Black Wolf is a result of years of intensive research to improve our gliding products. The waxes have provided excellent results in both the World Cup and World Championships, in cross country, biathlon and alpine skiing. The Black Wolf series strength is it’s performance on artificial snow, transformed snow and dirty snow and also in cold conditions when the dry frictional phenomena is relatively high. This patented additive gives lower frictional coefficient to the waxes than the BD-additive. Available in 40 gram bar size.