The NYX Carbon Pro Series is designed with an 8-based curvature. This means a better “hugging” feel to the face when worn with a sleeker style and look. This design is an excellent choice for females or young adults looking for a smaller frame design as well.The frame is constructed from a strong and flexible nylon derivative called Grilamid TR-90. This lightweight material can be easily shaped to maintain an even tighter fit during sports activities such as golf, skiing, shooting, baseball, etc.It offers a complete system for play or leisure no matter what the conditions might be surrounding you.Packages Include1 Frame (Color of your choice)3 Polycarbonate Lenses (Different colors based on selected package)3 Nose Pieces1 Soft Micro-Fiber Poly Bag Carrying Case1 Foam Lined 5-Slot Carrying Case