Gunnar Optiks SIG-00101Z Signature Semi-Rimless Ergonomic Advanced Computer Glasses with Amber Lens Tint, Onyx Frame Finish i-AMP technology and Crystalline lens is engineered for the graphic designer, editor or artist that requires an equally balanced color spectrum to design and edit in true color Made of aluminum-magnesium with an onyx frame finish Lightweight construction and proper weight balance guarantee long wearing comfort without pressure points or fatigue Medium fit frame with flexible temples to comform and ergonomically fit a wide variety of head and face shapes Comes with a 1-year limited warranty against manufacturing defects i-AMP technology and Crystalline lens is engineered for the graphic designer, editor or artist that requires an equally balanced color spectrum to design and edit in true color Made of aluminum-magnesium with an onyx frame finish Lightweight construction and proper weight balance guarantee long wearing comfort without pressure points or fatigue Signature's modern lens lines combined with a widescreen format make a perfect fit Comes with a 1-year limited warranty against manufacturing defects