Metalink combines a sport-inspired design with premium mixed materials to give you style and functionality that can easily adapt to life on the go. Features Expansion of the Crosslink franchise with an updated look and feel. Constructed of ultra-lightweight durable NonO-Matter front for all-day confort and resistance to the elements. Unobtainium earsocks increase grip when wet to help keep the eyewear securely in place. The strength and durability of stainless steel allows us to make temples with comfortably thin architecture. Available with a 4 Base lens, built to allow for a wide prescription range. Comes with three interchangeable, no-slip Unobtainium nosepads to help provide a secure and custom fit.