Rossignol DELTA SPORT R-SKIN STIFF + R-CLASSIC Rossignol DELTA SPORT R-SKIN STIFF + R-CLASSIC - cross country skis Improve your technique with the Delta Sport R-Skin Classic. The design of the Delta cross-country skis was inspired by the racing department. They are designed for fitness-oriented skiers. The skis feature a premium low-density wood core and pleasant, user friendly flex. Rossignol's integrated mohair strap, seamlessly interchangeable on the base, provides an efficient climbing experience without the necessity of applying climbing waxes to the ski. The skis are compatible with the TURNAMIC® binding system for the best flex and feel. Rossignol DELTA SPORT R-SKIN STIFF + R-CLASSIC