Ultralight, breathable, and fast-drying woven mesh fabric engineered for the toughest conditions of the Badwater 135 course; Reflective coating on the midsole enhances visibility for safer racing after dark; Dual-layer midsole design: top layer CircleCELL foam delivers uncompromised performance, crafted from sustainable materials, while the rubberized bottom layer provides support and stability; TUNEDFIT Dual Lacing System for separate lace adjustment; Wider base and higher sidewalls enhance stability during long runs