As one of the most versatile safety eyeshields kits in the industry, the ESS Crowbar Sunglasses w/ Silver Logo Kit - 2 Lens Array features two interchangeable impact-resistant polycarbonate lenses (clear and smoke grey) that cover a broad range of applications. The lightweight, semi-rimless frame is designed to work seamlessly with helmets, comms equipment, and other headgear, while anti-scratch coating and ESSOPTICS technology provide the distortion-free clarity you need to get the job done.