The sports style Scan Flexi Spectacles are designed for protection against low energy, high speed impacts of up to 45m/s (100mph). They are manufactured using a single piece, wraparound lens to provide maximum peripheral vision and side protection, the lens is scratch and impact resistant with an anti-fog coating and is UV resistant to EN170. The spectacles are user friendly, ultra-lightweight with super flexible arms and feature a soft nose bridge for added comfort. EN166:1F - withstands low energy high speed impacts up to 45m/s (100mph). Ultra lightweight Super flexible UV resistant Scratch resistant Impact resistant Anti-fog coating Smoke - Outdoor protection from excessive glare.