The Factor™ACC offers incredibly efficient power transfer with a comfortable, supportive fit. At its heart, you’ll find our acclaimed Easton® EC90™ACC carbon outsole. This outsole is light, thin and the stiffest we offer. That powerhouse base is paired with a breathable Evofiber™upper 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 SuperNatural Fit Kit (with adjustable arch supports) and X-Static® Anti-Microbial fiber that reduces odor.