Technical specifications:<br />This glasses has been designed with two primary tasks in mind<br />Integrate under night vision systems and their supports without causing optical interference and keeps the lens at bay.<br />The Ambidextro Slide Controller open on both sides to allow air flow through the lens that keeps the fog clear.<br /><br />features:<br />Material: Polycarbonate; Nylon<br />Weight: 360g<br />Color: Black， tan<br />Package Included:<br />1 x goggle<br />1 x lens and 1 x clear lens<br />1 x original box<br />1x mask