The lightest, most comfortable, high-performance road shoe Pearl Izumi has ever made. In their quest to make the best-performing shoe possible, they used less, reducing the amount of material for the upper as well as the full carbon-fiber sole. Re-engineering the sole was a 24-month process, during which they worked to concentrate carbon only where needed, resulting in a 22% weight savings over the previous plate. The sock-like fully knit upper means they can tune each zone for the right level of flexibility and retention, plus there's no waste from trimming; they use it exactly as it is finished. And by bonding nearly all of the seams, they have created a shoe that weighs less and offers greater comfort due to less bulk.Features:Fully knitted upper provides zonal stretch, high breathability and reduces waste1:1® Pro air carbon power plate drops weight and adds ventilation, without sacrificing stiffnessDual boa® ip1 reels allow 1-mm micro-adjustability, and pop up for full releaseDual density 1:1 footbed is ergonomically designed to provide optimal support, pedaling efficiency and comfort