Revision * Sawfly Basic High-Contrast Reg. * Black Frame * Slim arms for superior comfort under communications and hearing protection devices * Lenses made of indestructable, optical grade polycarbonate, scratch-resistant coatings resist a wide variety of chemicals * Lenses interchange quickly for various light conditions * 100% protection from harmful UV-A-B-C rays * Soft-grip rubber tips keep eyewear securely in place * Soft nose piece included on each lens * Arm length adjusts for precise fit * Adjustable head strap keeps eyewear securely in place * Optional Rx Insert is also compatible with Desert Locust