You know that feeling you get when you"ve been wearing sunglasses all day, Well, forget it. This member of our super-light frame-less collection weighs in at a feathery 16 grams. And with TR90 nylon Ballast is as durable as it is comfortable. Top it all off with Costa"s premium lenses, and you"ve got a pair of sunglasses that"s at home in, on and around the water.