The all-new X-IUM PREMIUM CLASSIC is the ultra-lightweight competitive classic boot for elite-level athletes and Sochi's Olympic heroes. Featuring an all-new featherweight carbon construction, the Premium Classic has been perfected over two seasons of athlete-testing on the World Cup circuit. The full-wrap carbon heel counter and full-length carbon midsole provide an ultra-stiff boot for competitive athletes. The low-profile Xcelerator sole provides increased leverage while the Lock Down foot wrap, Active Control heel support, Thermo-moldable fit and asymmetrical lacing provide the precise, enveloped race fit to deliver ultimate comfort and control.