Since you are playing football, I guess you need durable and light sunglasses which are extremely efficient in ultraviolet resistance. The sunglass which is made of polycarbonate is exactly what you need.
The advantages of polycarbonate over resin sunglasses:
1. It is anti-ultraviolet. Nearly 100% ultraviolet can be shielded. It also won't change color, while resin lens tend to turn yellow overtime.
2.It is the lightest material for optical lens. It is 30% lighter than resin lens and 50% lighter than glass lens.
3.Polycarbonate is famous for being tough and unbreakable. It is often used as bullet-proof glass.
4.Polycarbonate lens has a high index, so it is much thinner than resin lens and glass lens.
