Arcore SETON cross-country ski goggles include two lenses in the package. The goggles are fitted with a UV3 filter category lens with 14% light transmission to protect you in bright sunny weather. The lens can be effortlessly replaced within seconds with a replacement yellow luminous glass, boasting an impressive light transmission of up to 88% for improved visibility in low-light conditions. The comfortable elastic strap is adjustable to your preferred size and generously long, making it suitable for wearing over a beanie if needed.