I've never used it and just kept it stored away. How about it for the upcoming ski and snow mountain season? Below is the manufacturer's detailed description: Goggles featuring a light mirror coating and photochromic lenses that adapt to a wide range of weather conditions. Simple yet high-performance goggles. ●PROTECTION: UVA, UVB, UVC protection ●LENS: variomatic supravision decentered lens technology, spherical double lens Global lens Thank you for looking.