When the thermometer shows temperatures below -7°C it's time to get out your S1, this ski designed for cold snow guarantees great glide in these conditions and benefits from a special construction. Qwhat are the features of the Rossignol X-IUM Skating Premium+ S1 IFP cross-country ski? First of all, it's important to point out that while the ski's construction is identical to the S2 in terms of core and external structure, the S1 is very different in terms of camber and sole. As for the ski core, Rossignol relies on Nomex honeycomb and carbon coating, as on all the skis in the X-IUM Premium range. What sets it apart is its camber, which is shorter than that of the S2, making it softer on fresh, dry snow or very cold gun snow. The tip clears more easily on soft ground, so you don't have to spend too much energy raising it. As for the heel, it's a little more aggressive so as not to "soap up" on these leaky snows. The cold-structured K 9000 base is perfectly adapted to these conditions, making it a gliding machine where more versatile skis would be stuck. As for the external structure, Le Premium has been totally rethought, and the last layer that weighed the ski down has been removed. The result is a new balance and a lighter tip with better behaviour at the end of the push. As for the plate system, it's obviously IFP for Turnamic bindings. These bindings are adapted to NNN, Prolink and Turnamic boot standards. Who is the Rossignol X-IUM Skating Premium+ S1 IFP cross-country ski intended for? For specific skis like this one, we're targeting skiers who already own at least one more versatile pair of skis and want to complete their bag. You simply have to have a use for a pair of cold-snow skis. If this meets your specifications, you can go for it with your eyes closed, it's a very dynamic model that relies above all on the skier's sensations. What are the main qualities of the Rossignol X-IUM Skating Premium+ S1 IFP? Glide on cold snowNew, lighter structure with better balanceDynamics Size Grid: Rossignol X-IUM Skating Premium+ S1 IFPSki sizesSkier weight183 cm50 - 65 Kg188 cm65 - 75 Kg193 cm75 - 85 Kg This description is an automatic translation. Please contact us if you have any further questions. Nordic Ski Rossignol ---X-IUM Skating Premium+ S1