SES Road Tires are proven to reduce drag and are constructed to deliver rolling efficiency durability and a confidence inspiring ride - regardless of the weather.Smart ENVE System Aero Optimized Shape and Tread DesignNatural and Synthetic Rubber Compound w/ Activated Silica for All-Weather PerformanceTubeless Ready and Inner-Tube CompatibleHookless and Hooked-Bead Rim Type CompatibleVectran Protection Barrier