Wrap-around smoked, anti-fog glasses, remain free from mist when wearing a respirator or during temperature or humidity changes Smoked lens are ideal for reducing glare, eye strain and fatigue when working in bright sunlight Removable arms and head-strap attachment for easy conversion from spectacles to goggles Scratch-resistant surface Complies with: EN166:2001 1F for safety Complies with: EN166:2001 level F for impact resistance Complies with: EN166:2001 class 1 for optical clarity 99% UVA/UVB protection Designed to be comfortable and cool for long periods with a cushioned brow and foam fog and particle shield.