The Khor Z87+ sunglasses are ideal for professionals who require a frame that offers an unobstructed field of vision and shatter-resistant lenses. And our proprietary anti-fog technology (Vapor Shield) offers clarity in hazy environments. The Khor polarized safety sunglasses feature uncompromising comfort and a bold style wrapped into a blade-style frame. These polarized Z87+ safety glasses are constructed with a flexible nylon frame for durability and comfort. Plus, an adjustable thermoplastic rubber (TPR) nosepiece adapts to a variety of face shapes and helps keep them from slipping around when the going gets tough.