The FWE Rayet Multi Lens Glasses come with 3 interchangeable lenses: clear, yellow and grey. All the lenses are made from scratch-resistant polycarbonate and sit in a lightweight frame. They are treated with two separate coatings: a hydrophobic coating to repel water, and an anti-fog coating to prevent condensation. The result is glasses that perform across a wide range of conditions.An adjustable nose piece and rubber arm grippers provide a comfortable and secure fit. Included is a drawstring pouch for storage, protection and cleaning.