The BoroView 3.0 lenses are a revolutionary formulation designed to meet the exact needs for those working with harder, higher temperature of borosilicate glass. These lenses are especially formulated polycarbonate, which are lighter than conventional laminated and glass products. In addition, the BoroView is a full coverage lens, bringing safety and comfort all day use, with an extra UV and IR protection. Perfect for those who work with lampwork or hot glass in small pieces.