The Pyramex I-Force is coated on the inside and outside with Pyramex's patented H2X anti-fog coating to resist fogging even in extreme temperatures. The quick-release interchangeable temples and strap eliminates the need for a bulky goggle and standard pair of safety glasses, allowing the wearer to adapt seamlessly to ever-changing duties. Maximum dust protection is offered by the indirect-vented foam carriage, which allows for sufficient airflow. Feel confident performing any task with the Pyramex I-Force Convertible Safety Glasses/Goggle. Provides 99% protection from harmful UV-A and UV-B rays. ANSI Z87.1-2015 Certified, meets MCEPS Class 1 Military Standards.