UA FLOW technology for unparalleled comfort, ground contact and traction. Breathable upper made of durable ripstop material with modified ventilation. BOA FIT SYSTEM: Individual adjustment, one click at a time, with 12-point locking system. ISO-CHILL INNER PADDING: Heel-to-toe internal foam padding with Iso-Chill technology that's cool to the touch. Machine washing: We've made it simple - put them in the washing machine to keep them fresh and clean. Convertible heel for easy transition from running mode to recovery mode. *Laundry bag not included.