The Bolle Prism safety glasses are designed to combine high style with textreme protection. Thanks to the high strength polycarbonate frame, the Prism offers excellent protection at a great value. Straight temples and an adjustable cord provide a comfortable and customizable fit while remaining lightweight at under one ounce. The lens is coated with a durable anti-fog and anti-scratch technology, allowing them to stand up to regular use. In addition, the Bolle Prism meets ANSI Z87.1-2010 and CSA Z94.3-2007 safety ratings.