For fitness swimmers who enjoy their workouts indoors or out, the Aqua Sphere Seal Mask is a great choice. Loaded with features included a silicone skirt, adjustable strap and UV protection.100% UVA and UVB protection..Antifog coating, scratch resistant..Clear lens designed to provide visibility while swimming indoors or in low light conditions..Tinted lens designed to provide greatest visibility and comfort while swimming outdoors or in bright light..Weight: 4 oz..Colors: Clear lens/Blue frame. Smoke tint lens/Black frame..Clear lens/Blue frame..Smoke tint lens/Black frame..