This is a very well designed sunglasses perfect for any sports. I have a huge head, so it is very hard for me to find glasses that actually fit without looking miniature on my face. Pivlock some what achieve that but do keep in mind that due to the curvature of the lens it get really tuck in around the check area. So if you have a wide face like me you will need to get a bigger nose piece to push the lens forward. It came with the Greenish lens for sun use and also a grey-pinkish lens for early dusk and dawn use. I try it with sun in my face it is not recommended.I end up buying this at the store b/c I bought two pairs for myself and brother but it came scratched up really bad in the corners where the "pivlock" is. Also when we remove the nose piece we see a lot of scratches too. The only reason I rated a 4 star is due to buying experience. I really needed these sunglasses for a long ride last weekend but I went on without one. I end up buying it at a local bike shop. I'm not sure if this is a used/return piece or what.