Durable C-5™ Alloy Let Us Create A Thin Frame With A Nuance Of Sculpturing Along Its Sleek Linear Temples. Cathode Echoes The Smooth Attitude Of Our Renowned Sliver Frames, And The Idea Here Is Subtle Refinement In A Look That Takes You Anywhere. Semi-rimless Architecture Makes It Lightweight For A Barely-there Feel, And Unobtainium® Components Keep It In Place With All-day Comfort.