wiley x saber advanced glas rustIt filters out most of the blue light, which is the main cause of blinding and fuzzy vision. Gives better contrast in low to medium light. Polycarbonate glass, which is a very durable and non splintering material. The glasses are treated with multiple layers of coating which makes they very scratch resistant. The glasses filter out 40% of the visible light and protects against the damaging UVA and UVB rays.