In the new fluoro-free racing world, Rex has redeveloped their fluoro-free line of liquids to increase the speed even more (``Faster than HF``). The NF-Line of waxes use a handful of new Rex technologies to speed up fluoro-free waxes such as UHW (increase of durability), Level 3 N-Kinetic (increased glide properties and dirt repellence), Power Polymers (works with UHW to increase durability), and 2-Step Carrier Solvents (allows application of these new advanced liquid waxes). NF41 is a very hard, wear-resistant wax for cold, crusty snow, coarse, wet snow, or icy conditions, between 5°C and -20°C. Great for long distances or alpine where wax resistancy is crucial. Comes in a 60mL Sponge Applicator bottle, 150mL Spray bottle, or a 170mL Open Top bottle.