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Product DescriptionMantis Sunglasses deliver outstanding performance and cutting-edge features in a high-tech, great looking frame. Aluminum-magnesium frame material is super strong and amazingly light. Spring-hinge temples provide a snug but comfortable fit. Adjustable rubber nose pads articulate for perfect frame positioning.
The crystal-clear polarized lenses come with smartly placed bifocal magnifiers. Now you can tie knots, read small print on maps, or operate navigational electronics without switching to glasses or magnifiers. The bifocals are out of the way while fishing, but conveniently ready when you need them. The inner-lens bifocals virtually vanish when worn. Choose between 1.5, 2.0, and 2.5 power bifocal.
The multi-layered polycarbonate lens is less than half the weight of glass for extended hours of use without fatigue. It provides the best scratch and impact-resistant option for those who are tough on their gear. Shatter-resistant coating on both side of the lens handles extreme sports and outdoor activities.
Deepwater Gray Lens allows for great contrast and natural color perception. The gray lens transmits all colors of the spectrum so there is little distortion. Ideal for open water fishing on bright sunny days and most watersports activities. Visible Light Transmission: 11.8%.