Revision Snowhawk Replacement Lenses Clear. This lens will help soldiers better see the undulations of snowpack identify recently covered tracks estimate distances and makes man-made structures vehicles and people stand out Features of Revision I-VIS Snowhawk Ballistic Replacement Lens: The thermal gasket lens has an insulated barrier between panes to keep the cold exterior from infiltrating. Tested under EN 166 standards Revisions OcuMax Plus is proven to last longer than competing anti-fog solutions by a factor of 10-20 times is chemical-resistant and prevents scratches streaks and smears. Built to exceed stringent U.S. and international ballistic impact requirements for use in military and tactical operations. Interchangeable optical grade polycarbonate lenses shield eyes from unexpected fragments provide 100percent protection from harmful UV-A B and C rays and ensure distortion-free vision for peak performance. Package Contents: Revision I-VIS Snowhawk Ballistic Replacement Lens Revision 4-0103-0015: Snowhawk Replacement Lenses Clear