The Dean Karnazes signature Edition SOLE provides heat moldable support a custom fit, specifically designed for running long distances. The perforated EVA base enhances breathability and reduces weight, which increases endurance. X-static silver fibers in the top sheet help control odor. X-Static top sheet controls odor and wicks moisture keeping you cool and dry. Industry-leading cushioning is supplied by 1.6mm of SOFTEC for comfort that last as long as you do. SOFTEC cushioning technology provides maximum protection against shock. Lightweight EVA base reduces weight construction that molds to your foot. Aggressive arch provides the ultimate support and control. Deep heel cup to help alignment upon heel strike.