The F1 Series is designed to be versatile, suitable for a wide range of activities including driving, running, sailing, and golfing. These custom-fit sunglasses provide a fashionable look and high-performance functionalities, making them ideal both on the streets and on the fields. Skelmet uses only the highest quality polycarbonate lenses offering the following features: optimal clarity, lightweight, high impact resistance, chemical resistance and 100% UV protection. All of the Skelmet sun lenses have advanced Anti-Reflective, Oleophobic, Anti-smudge, and Anti-fog coatings. The F1 Capecod series is 3D printed with PA-12 Nylon Plastic material. The material is high flexible, impact resistance, erosion proof, sun-proof, and sweat proof.