Icon Airflite Hydradry LinerThe removable sweat wicking Hydradry liner provides a snug and contoured fit. Air from the vents is channeled between the comfort liner and the protective,energy absorbing EPS foam liner to create a nearly perfect rider focused interior. The airflow works in conjunction with the Hydradry liner to effectively reduce heat build up. Combine that with superior venting and a removable breath deflector which creates a nearly perfect rider focused enclosure.