Pearl Izumi - Ride Pro Barrier Lite Shoe Cover 100% Other Fibers Imported Spring/summer 2017 P.R.O Barrier Lite fabric provides lightweight wind protection and water resistance. Wind tunnel tested for Aerodynamics Zippered rear closure for improved fit and class leading Aerodynamics. For road shoes with external CLEATS. BioViz screaming Yellow color option Fabric: 50% Nylon/40% Polyurethane/10% Elastane PRO Barrier Lite fabric provides lightweight wind protection and water resistance Wind tunnel test for aerodynamics Zippered rear closure for improved fit and class leading aerodynamics