The Bontrager Circuit Road Shoes will help you unlock your potential and go farther, compatible with both 2-bolt SPD-style and 3-bolt cleats, this shoe is ready for anything.Bontrager Circuit 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 2-bolt SPD-style and 3-bolt cleatsBontrager Circuit Road Shoes SpecificationsGender: MenCleat compatibility: SPD SL 3-bolt and SPD 2-boltIncludes cleat covers: NoClosure type: BOASole fibre content: 85% Nylon / 15% FibreglassFibre content - upper: 56.9% PU / 10.5% Polyester / 32.2% Nylon / 0.4% SteelLiner fibre content: 100% PolyesterBag included: No