Otis After Dark X Sunglasses, with "Light Improvement Technology" Lenses. 
This refined square frame is made from lightweight Swiss Grilamid for all-day comfort and perfect for long beach days or adventures into the wilderness. A slightly larger fit than the Otis After Dark, the After Dark X provides extra sun protection with a look of style.

• Frame: Black Woodland Matte. Swiss Grilamid
• Lenses: L.I.T. Polarised Grey. Mineral Glass Lenses with Light Improvement Technology  
• Category 3: 100% UVA / UVB protection
• Viscottica hinges with stainless steel screws

Light Improvement Technology (L.I.T.) is the next evolution in OTIS Mineral Glass lenses. 
The OTIS L.I.T. lens offers clarity through colour-enhancement, lifting primary colours while blocking out inter-primary shades to provide more vivid and precise vision. In addition, a Japanese polarised layer cuts glare, a hydrophobic layer eliminates fogging, and an anti-reflective layer keep vision sharp.  
The L.I.T. Lens is made from OTIS’s signature mineral glass that is scratch-resistant and distortion free.

• Colour Enhancement: Boosts the natural colours of the world making greens more vibrant, blues more vibrant and reds deeper
• Polarised film: Eliminates glare and reduces eye fatigue
• Anti-Reflect Mirror: Cuts 99.9% of light bouncing back into eyes
• Multi Layer Mirror: Built inside of front ‘wafer’, making it impossible to scratch the mirror
• Mineral Glass Lenses: 12 times more scratch resistant to regular options