The factortradeacc offers incredibly efficient power transfer with a comfortable supportive fit at its heart yoursquoll find our acclaimed eastonreg ec90tradeacc carbon outsole this outsole is light thin and the stiffest we offer that powerhouse base is paired with a breathable evofibertradeupper that literally molds to the shape of your foot while the micro adjustable mr 1 buckle allows for precise adjustments on the fly other features include replaceable walking pads a supern