Ray-Ban Wayfarer Liteforce RB4195 6085/2L Yellow Square Yellow Gradient 52-20 UNISEX Sunglasses Inside of one end has a spot of wear and some small scratching on the lenses in the pictures. A member of the Tech Sunglasses Collection, Wayfarer Literforce sunglasses resemble an outstanding combination of innovative material and the unmistakable iconic Wayfarer design. Wayfarer Liteforce RB4195F sunglasses are constructed from a new high-performance thermoplastic, used in various high-tech industries including aerospace, automotive and medical technology. The first of its kind in the eyewear history, this cutting-edge material provides superior lightness, durability, flexibility and comfort. The unique construction of the Wayfarer Liteforce allows for the same look and thickness of the Wayfarer Classic but with extreme lightness.