Pearl iZUMi Men。In our quest to make the best-performing shoe possible, we 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 we worked to concentrate carbon only where needed, resulting in a 22% weight savings over the previous plate. The sock-like fully knit upper means we can tune each zone for the right level of flexibility and retention, plus there’s no waste from trimming; we use it exactly as it is finished. And by bonding nearly all of the seams, we 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 waste 1:1® PRO Air Carbon Power Plate drops weight and adds ventilation, without sacrificing stiffness Dual Boa® IP1 reels allow 1-mm micro-adjustability, and pop up for full release Dual density 1:1 footbed is ergonomically designed to provide optimal support, pedaling efficiency and comfort Fit runs small FABRIC upper: 64% rubber/plastic, 36% textile bottom: 96% carbon fiber, 3% nylon plastic, 1% steel, 0% Eva, 0% rubber