Tepor membrane to add a water resistant yet breathable barrier between the elements and the rider’s feet. Lorica outer construction. Perforated Teflon treated nylon lining. Composite inner sole. Removable arch support. Double stitched in all high stress areas. Fully encapsulated heel cup. Zipper and Velcro closure system. Dual compound sole. DuPont polymer toe shift pad. DuPont polymer ankle cup Kent Vent (2) air intake scoops for maximum airflow.