The ultra light tool of the K2 Touring Skis Featuring our balsa/paulownia Tour Ultra Light wood core, Ti Spyne construction for stability underfoot, and integrated race notches in the tip, the Wayback 80 is an ultra light tool optimized to get you uphill fast. If blistering traverses and ski mountaineering races sound like your idea of a good time, this is your dream ski. K2 - Wayback 80 22/23 Touring Ski