
The ESK is 8% lighter than its predecessor, the TCS. The titanium/carbon cuff is 3 dimensional, for added stiffness and an anatomical fit around the ankle, and lined with a softer plastic cuff on the inside, for added comfort and stability around the calf. Around the foot, the fit is completely personalized by the lacing and textile hook arrangement that holds the laces at each point, for a firm fit until the end of the race. | ||||