Globalvision ULTRA 24 self-tinting glasses

Ultra 24/self-tinting from Global Vision ? Shatter-proof, shatter-proof polycarbonate lenses ? UV400 filter for maximum UV protection ? Scratch-resistant coating ? All-round, soft foam seal ? Black frame ? Anti-fog coating on both sides ? Rubberized, extremely flexible temple tips ? Includes microfiber glasses bag Special feature: ? Self-tinting lenses, in direct sunlight, from clear to dark, the tint changes in about 1 minute (photochromic) Little tip: The self-tinting does not work under a helmet with a visor, since most visors these days have UV protection.