Pros: Comfortable, Optimal clarity, fit
Cons: Obstructed views, durability

I've purchased mine from one optical shop in the Philippines and sad to say that in less than two months after purchase my sunglasses went back to the warranty department twice! One for a minor scratch that I did not notice upon purchase and the second was the sudden breaking of the left spring hinge.... I really dont know what the real problem of this particulay style but definitely durability is wanting here....