Basically, there are four functions of sports glasses in total.
First of all, it is security that ensures the sportsman to do sports in a safe environment. For example, PC Lens, the unbreakable lens, is lightest and thinnest lens in the world. It weighs lighter than the glass optical lens by 57% and thinner than hard resin lens by 26%. What’s more, it is the most resilient lens recently. It is said that the lens is initially applied in the field of aerospace and military to make the watching window and bulletproof glasses.
Secondly, it is widely acknowledged that protecting is the main function. For instance, TR-90 is a kind of material made of hyper-tenacious resin, which is smooth and resilient. It can tolerate such temperature as high as 350°. It has good memories as well. Therefore, frames made by TR-90 are welcomed on a wide range: Racing drivers wear this kind of glasses in order to protect their eyes, Divers also wear the glasses to resist the external pressure from water.
Thirdly, it can make the sportsmen more comfortable. The anti-skidding nose pad, for example, can efficiently decrease the probability of skidding of the glasses. Others accessory, such as foot set, can fasten the glasses as well.
Finally, it will match the sportswear. Once a sportsman puts on a sportswear, he appears to be a professional athlete. If a pair of suitable glasses is matched, he will be more professional.
In a word, sports glasses, such as swimming goggles, flight glasses, are all functional. They can assist the sportsmen perform better.