racing spikes & watch !! actual metal spikes can be switched out for xc or track. i’ve had this watch for over 3 years & i. love it ! music part is option, but great to connect to ear buds if you don’t like to carry phone on runs running runners watch spikes runningshoes runnerwatch run nike garmin follow my shop & instagram @goodfoodgoodrun for more !! LTKSeasonal