Pearl iZUMi Women's W Race RD IV-W Cycling Shoe Upper: 68% Rubber/30% Textile/2% Steel; Sole: 70% Nylon Plastic/22% Carbon Fiber/3% Steel/3% Ethylene Vinyl Acetate/2% Rubber Imported Synthetic sole SELECT 1:1 Power Plate Composite Fiber plate with carbon fiber forefoot insert for lightweight stiffness and durability; Direct-Vent technology for cooling and drainage Bi-directional Closure: delivers a semi-custom fit by gathering equally from both sides for even foot retention, with the precision of a IP1 micro-adjustable Boa reel Women's specific fit has reduced volume and narrower heel Ethylene vinyl acetate foam and Rubber heel bumper gives stability and walking comfort SELECT Insole: provides excellent Longitudinal and Transverse Arch Support, SPD Compatible