Kaenon designed the performance-driven Kaenon Polarized X-Kore Sunglasses for sports enthusiasts. Polarized SR-91 lenses resist impact, eliminate glare, shield UV rays, and offer unsurpassed clarity. The lightweight Swiss-made TR-90 frame provides the most coverage in Kaenon's lineup, and it's so flexible that you can still slide the sunglasses under your helmet comfortably. Variflex nose and temple pads keep these shades on your face when you work up a sweat, and the stainless steel pivot joint hinges resist rusting. Kaenon also included a protective hard case and a soft microfiber bag for cleaning and travel. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.