Click thumbnail to open high-resolution image about 714KB “SILENTFOAM” and “E+” on an ADVAN Sport EV’s sidewall about 5026KB “E+” mark about 26KB Image of SILENTFOAM polyurethane foam attached to the tire’s inside surface (blue coloring is for imaging purpose only) about 1216KB Image of the compound used in ADVAN Sport EV tires about 1836KB