Six-base curvature wraps the rectangular lenses around your eyes for a wide field of view, and the lightweight C-5™ alloy frame is crafted with spring hinges and sculptural temples with sure-grip Unobtainium®. • Constructed of lightweight, durable C5- Full-rim, high wrap 6 B rectangular shape • Integrated spring hinge • Unique temple design Unobtainium® earsocks and new air filled silicone nosepads ensure a snug, secure fit • Comfort and performance of Three-Point Fit that holds lenses in precise optical alignment • Two sizes: 53/55 • Protective carrying case included Lenses