Hey guys , the fastrack gear sunglasses are the best quality sunglasses which protects our eyes from harmful ultravoilet rays from sun. This sunglasses are made up of special quality material and helps to protect eyes from various factors. I loved this sunglasses as I like most bike rides this glasses are most useful to protect my eyes from harmful ultravoilet rays from the sun as well as these glasses also protect eyes from dirt , pollutants , dirt particles from directly entering in eyes thus I would recommend this product to everyone.