The Hero 24 YT gives you the option of wearing your riding glasses with or without the foam padding. Removable vented EVA foam padding provides extra comfort & protection from wind & debris. The high quality lenses are anti-fog and offer UV400 protection against the harmful UV rays of the sun. For maximum protection, the polycarbonate lenses provide you the assurance that your eyes are well protected when you are wearing the Hero 24 YT. Best of all, the UV activated photochromic transitional lenses automatically adjust for day or night use.