Strike King Plus Potomac Polarized Sunglasses Scientifically engineered lens colors to help clearly distinguish underwater structure and fish Equipped with advanced polarization technology 100% protection from UVA and UVB rays Advanced coatings for greater resistance to scratches Lenses stable in all weather and humidity conditions Block 100% of harmful ultraviolet light, reduce eye strain and remove glare from the water Strike King has been a leader in polarized sunglasses for fishermen Models include lenses made with APT Advanced Polarization Technology Greater visual acuity, more rigid lens & smooth coating for greater scratch resistance & better optical performance vs. traditional plastic lenses Polarization in fishermen's sunglasses is a must and a benefit for most all other uses and all Strike King models are polarized