The sturdy Costa Del Mar Saltbreak Polarized Sunglasses stand up to boating and fishing in less than favorable conditions to give you crystal clear optics wherever you cast your anchor. Costa 400 glass lens blocks harmful UV rays as well as harsh glares with a polarized performance that will keep your eyes happy and healthy in the sunlight. The lenses are also 20% thinner and 22% lighter than standard glass polarized lenses, and they resist scratches so you can enjoy these sunnies for many years of boating and fishing. Costa Del Mar made the bold frame out of co injected nylon to keep it durable and strong where it needs to be and comfortable where you want it to be. The eight base curve wraps around your face for coverage on the sides, and the included hard case helps protect the Saltbreak while you travel.