i-AMP technology, amber lens tint, anti-glare coatings and ultra-pure lens material provide sharper, clearer vision so you can work more efficiently and feel more comfortable * Made of aluminum-magnesium with a graphite frame finish * Lightweight construction and proper weight balance guarantee long wearing comfort without pressure points or fatigue * Unique squared off lenses and semi-rimless frame design minimizes peripheral distractions * Comes with a 1-year limited warranty against manufacturing defects