The Smith Men's Guides Choice Bifocal Performance Sunglasses are reimagined to exceed the needs of the most demanding users. Bifocal lenses mean you don't have to switch back and forth between your shades and your glasses, choose between +2. 0 or +2. 5 magnification options. These sunglasses incorporate the most advanced eyewear technologies and boast wide temples as well as an aggressive wrap for superior light protection. The Guides Choice add that premium Italian spring hinges, megol nose and temple pads. The Guides Choice is engineered for those that truly believe in the life outside walls.