Filters blue light which can cause eye fatigue and cause a haze effect. For normal to bright outdoor use
Crossfire® 9117 Safety Glasses, Sniper, Half-Frame, Lens Tint: High Definition Brown Flash Mirror, Frame Color: Crystal Brown, Size: One Size Fits All, Lens Material: 2 mm Panlite Polycarbonate, Frame Material: TR90, Base Curve: 8