UNIT VAULT POLARIZED SUNGLASSES FEATURES:

• 1 Piece Polycarbonate Polarized Lens
• TR90 Frame (Swiss Material) - Light Weight, Extremely Flexible Yet Super Strong With 100% Memory.  
• The TR90 Material Will Keep It's Shape In Extreme Temperature Hot Or Cold.   
• Impact Hinge Stainless Steel 82% silver 18%   
• Lens Category 3 - High Sun Glare Protection & Good UV Protection