The Edge Eyewear Kazbek polarized safety glasses feature a flexible, durable black wraparound frame. Soft thermoplastic rubber nose pads and Edge-Flex temple arms help create a comfortable, nonslip fit. Polarized copper lenses make outdoor conditions appear sharper by filtering high levels of blue light. Copper also increases depth perception and contrast, making it the ideal lens tint for daytime driving and golfing. The addition of a polarizing filter increases clarity by reducing glare.