Skullerz Kvasir Safety Glasses feature a tough, scratch-resistant lens that filters 99.9 percent of harmful UVA, UVB and UVC rays to keep your eyes safe in the sun. These protective, work safety sunglasses are military tested and ANSI Compliant. This smoke lens is ideal for outdoors and bright light. Durable, medium frame bends and flexes without breaking. Nonslip, rubber temples keep the glasses secure and resist sweat. Temple accessory slot lets you add accessories while improving airflow. These accessories include an elastic retrain strap and foam gasket insert (both not included). Gasket insert reduces dust/debris entry. Frame width is 143mm.