The advantages of the next generation s works 6 shoe can be summed up in two simple phrasesexplosive speed and superior comfort the speed comes as a direct result of great fit and better connection delivering more efficiency and power to the pedal the new padlock heel combined with revolutionary strong and lightweight materials in the upper creates a snug fit that is incredibly secure result you have a shoe that helps transfer more of your energy into the pedals when you crank up the wat