Storming in with ultra-thick sides and a front that commands attention, the Cyrus 50/50 is the frame you need to run the show. Square in frame design but bold in attitude.• HD+ lens technology combines the superior clarity of Spy's digitally mastered high definition lenses with the therapeutic and visual performance benefits of the patented Happy Lens. Enjoy enhanced colour and contrast, improved mood and alertness, and distortion-free optics in one package• Constructed from Grilamid, a lightweight frame material ideal for everyday wear due to its strength and flexibility• Spy's 6-base polycarbonate ARC lenses are injected in a unique tapered shape to provide optically correct, distortion-free viewing at all angles and prevent discomfort and eyestrain• Robust 5-barrel hinges• 100% UV protection reduces eye fatigue and long-term sun damage