Next level combination of grip and glide with Rex Dual Compound technology: The innovative recipe of Rex's N-line grip waxes consists of both pressure-sensitive and temperature-sensitive raw materials in an optimal ratio, to achieve a perfect balance for the demands of todays World Cup racing tracks. Taking advantage of Rex N-Kinetic technology increases the glide and dirt repellency of the series. N-series grip waxes can be used as cover waxes, or just on their own. Already World Cup proven with a confirmed win with N-line waxes! The fluor-free N-line series replaces Rex's previous Pro Grip series. N21 G Black is a blue condition kick wax for especially new snow. With the same graphite additive used in our glide waxes for new snow. Anti-static and does not collect snow. Excellent non-fluorinated alternative for Rex's popular Racing Service Line 30G grip wax.