Specifically engineered to reduce digital screen eyestrain Vinyl's modern digital lines combined with a vintage silhouette are a tech spin on classic styling. Protects, enhances, and optimizes visual performance. Gunnar’s i-AMP lens technology features amber lens tint, anti-glare coatings and ultra-pure lens material for sharper, clearer vision. Wide format lenses create a panoramic viewing field for high resolution viewing. Aluminum-magnesium frame generates strength and optical stability through a hybrid lightweight metal alloy. Floating nose pads articulate in 3 dimensions to properly fit and comfortably secure eyewear. 56-millimeter lens width, 16-millimeter bridge width and 133-millimeter temple length. Backed by the manufacturer's 1-year warranty.