There's really nothing quite like walking along a beautiful beach under a sunny sky, especially when you're wearing the Smith Dolen Sunglasses with Techlite polarized glass TLT lenses. The polarized lenses obliterate uncomfortable glare that strains your eyes, and the Tapered Lens Technology provides a crystal clear vision by straightening out the incoming light rays in ways that most sunglasses don't. A hydroleophobic coating repels moisture as well as grease and grime on your digits, so you're not peering through droplets or smudges. The Dolen also eliminates any annoying reflection on the inside surface of the lens, and the glass's anti scratch performance is twelve times better than that of plastic lenses. Smith used recycled materials for the Evolve frame that's surprisingly lightweight. And hydrophilic Megol covers your nose and temples with a firm grip that prevents the sunglasses from slipping off your face when you work up a sweat in the sweltering sun.