Mavic tri race shoespure triathlon performance with great comfort and value the tri race offers quick transitions thanks to the easy on strap and solid energy transfer with the energy carbon comp outsole featuresenergy carbon comp outsole composite glass fiber and nylon insert with carbon reinforcement for increased stiffnessergo fit 2d preshaped 2 density composite insole with a high density rear heel cradleergo strap custom integrated adjustability for enhanced fiteasy on strap patented