Uvex Skyguard NT 9175-261 Smoke Lens Specs combines the benefits of safety spectacles with those of goggles. Protects against liquid droplets and splashes; large dust particles. Comfortable, customised fit - multi-level adjustment of side arm lengths allow adjustment to suit the shape of wearer's individual face. Permanent uvex supravision excellence lens coating - anti-fog for at least 16 seconds on the inside, extremely scratch-resistant and chemical-resistant on the outside. Conforms to EN 166 1F 34 KN CE EN172