The Giro Factor ACC HV Road Shoes provide ultimate power transfer and the all-day comfort you need for long rides at maximum effort. New one-piece Evofiber Microfiber upper is water-repellent, highly breathable and conforms to your foot like a second skin for effective energy output. SuperNatural Fit Kit lets you adjust the level of arch support, enhancing efficiency and comfort. High Volume Fit last gives premium support to cyclists with wide feet or high insteps. At only 6.5mm thick, the updated Easton EC90 ACC unidirectional carbon outsole is even lighter than before, plus it's engineered to provide a direct connection with the pedal, thanks to class-leading stiffness that puts your full effort into forward motion. New 2-way micro-adjustable MR-1 buckle allows for precise adjustments on the fly. The Factor ACC HV shoes have the comfort and power you need to go the distance.