Slp Powder Pro Ski Bottom (Black) Part # 35-330 Provide the ultimate in loose-snow performance for maximum flotation and precise steering control Patented bottom design with a multilevel keel Only the lower keel contacts the snow in packed-snow conditions; shares design features with SLT skis to provide precise steering with reduced darting Upper keel comes into play in deep powder and loose snow; sidewall adds steering control Compaction Control Technology (CCT) uses powder control wings to direct snow under the ski, where it is compacted to add ski lift