New Millennium 3 Carbon Composite Sole. Breathable, supple, durable Vented Lorica.Micro-fiber Upper with cooling mesh inserts. Ultra SL Buckle for easy on the bike fit adjustment. Soft instep closure system and paddedtongue eliminate pressure points. High Security Velcro(R) wont shift or slip. Replaceable heel pad. Regular, Mega and Narrow Widths.!