Product Description Zorge G2 - black/yellow lens. The blade-style Zorge G2 is a lightweight pair of Sport glasses that are perfect for any activity. The flexible and durable black frame is equipped with soft thermoplastic rubber nose pads and temple arms to create a comfortable, nonslip fit. The open lower frame prevents sight obstruction and allows lenses to be removed and replaced easily. Yellow lenses make dull, overcast conditions appear brighter and filter low levels of blue light. They also increase depth perception and contrast during dawn or dusk activities, including driving. 80% of visible light passes through this lens color.