Fastrack is a well-known brand. And as per name, it delivers the best product. I bought a sunglass two months ago. And really it works in the sharp light and in the night as well. There are lots of variety in the Fastrack sunglasses. They are light in weight along with a good quality.
The main thing in this model the design and the looks of the glasses which comes in different and attractive colors. And also suitable for your eyes no pain anymore after wearing a long time. I will suggest these glasses if you are planning to buy.