Tanner hall signature series canopy snow goggleemerald iridiummedium to bright light neutral lens tint for truer color perception features an iridium coating to reduce glare excellent in hot sunny conditionsspecificationslight transmission 13conditions medium to bright lightprotection index 3neutral contrast neutralhes a killer on the cold stuff but even when hes slaying the comps in a frostbite freeze his inspiration comes from a tropical zone jamaican rhythms move t