The FLAT CONCEPT from Red Bull SPECT Eyewear offers crystal clear vision, enhanced contrast and 100% UV protection with I°BOOST and POLAR°Z technology. The robust metal construction combines style with durability, while soft temple tips and a silicone nose pad ensure maximum comfort.Lenses with I°BOOST technology ensure intense contrasts, brilliant colors and razor-sharp vision.Polarized lenses are beneficial for sports and leisure activities. They absorb dazzling light, enhance contrasts and improve color perception.Lens Category 3