The lightweight EXCELLERATOR suit uses moisture-wicking and thermal-regulation technology to keep you comfortable in all seasons and under all conditions. Anatomically shaped to be worn under a leather one-piece suit, the EXCELLERATOR prevents overheating in summer and hypothermia in winter, with stretchable PE that offers comfortable support for the body and reduces muscle fatigue. For additional comfort, this under-suit features thumb and ankle straps to accommodate all types of racers.