The Bontrager Sonic Womens Road Shoes will help you unlock your potential and go farther in the saddle, With equal parts stiff and comfortable, compatible with both 2-bolt SPD-style and 3-bolt cleats, this shoe is ready for anything.Bontrager Sonic Womens Road Shoes FeaturesinForm Race offers a slightly roomier, high-performance fitNylon composite Bronze Series soleThe PowerTruss sole design improves stiffness without adding significant weightBOA® L6 dial for precise adjustmentStiffness index - 7 of 14Compatible with 3-bolt and 2-bolt SPD-style cleats (2-bolt mounting plate sold separately)Bontrager Sonic Womens Road Shoes SpecificationsGender: WomenCleat compatibility: SPD SL 3-bolt and SPD 2-bolt (2-bolt mounting plate sold separately)Includes cleat covers: NoClosure type: BOASole fibre content: 85% Nylon / 15% FibreFibre content - upper: 56.9% PU / 10.5% Polyester / 32.2% Nylon / 0.4% SteelLiner fibre content: 100% PolyesterBag included: No