The Scan Flexi-Spec Safety Glasses Twin Pack for protection against low energy, high speed impacts. The wrap-around single piece lens design gives maximum peripheral vision. These ultra lightweight glasses have many great features, including super flexible arms and a soft nose bridge for user comfort and have a UV, scratch and impact resistant lens with an anti-fog coating. The pack contains one pair of clear lens glasses for general indoor applications and a smoke lens for outdoor protection against excessive glare. Conforms to EN166:1F – withstands low energy high speed impacts up to 45m/s (100mph) and EN170.