Tifosi's Smoove Polarized Sunglasses strike a fine balance between high tech and high fashion with it's scratch-resistant and shatterproof polycarbonate lens housed in a lightweight yet extremely durable Grilamid TR90 frame. Tifosi is known for quality optics that rival brands coming in at two or three times their price, making these a perfect option for those of us who've had enough expensive shades go missing to opt for something of both high-performance and high-value. The Smoove Polarized sunglasses are suitable for casual wear and active use alike with their glare-blocking polarized lens, bombproof frame, no-slip fit, and strong UV protection. Tifosi designs them to fit all face sizes, and backs them up with a limited lifetime warranty for good measure.