With the MANTRA we introduce our most technical VZUMTM photocromatic lens yet: the new F-LENS ROCKET 🚀 Starting with a slightly yellow tone when deactivated, becoming a silver mirrored finish in active status. Available with both frames, black and white. . #albaoptics #vzumlens #rideforalba #mantra #cyclinglife #retromodern #outsideisfree