Want to put corrective lenses in your Liberator Goggles ? These versatile +/- corrective lenses can be inserted into the Liberator goggles. Lenses are available in 0.5 Diopter increments from 2.0 to 8.0, and 1.0 increment from 8.0 to 10.0. With a variety of +/- diopters to choose from, these no fuss smoke or blue lenses are easy to assemble and adjust as well as being very comfortable with soft eye seals. Lenses provide 100% protection from ultra violet (U.V.) rays. Increasing exposure to U.V. rays, which damage the skin and eyes, has become a serious problem. 100% U.V. protection (under 380nm) provides greater eye protection during outdoor use. The lenses have Super Anti-Fog treatment provides long-lasting protection against fogging caused by perspiration and heat. Wetting the inside of the lenses before use creates a film of water that ensures a clear field of view and allows the treatment to work effectively. (VC-4 LIBERATOR CORRECTIVE LENS)