Part of Smith's Evolve series, the Outlier Sunglasses' bio-based construction cuts down on waste without compromising style or durability. Clean, modern lines offer super-versatile style that's at home everywhere from the trailhead to a night out on the town. Carbonic TLT (Tapered Lens Technology) lenses eliminate distortion for crystal-clear optics Hydrophilic Megol nose & temple pads get sticky when wet for a super-secure fit Evolve frame made with 53% bio-based Rilsan material for reduced environmental impact without sacrificing durability or performance