• Acrylic lens, titanium and metal frame with spring hinges
  
• Block 40% blue light, almost no color distortion
• Frame width about 5 5/16 inches (135mm)
• Lens width about 2 1/16 inches (52mm)
• Lens height about 1 1/2 inches (38mm)
• Bridge (DBL) about 11/16 inches (18mm)
• Temple length about 5 3/8 inches (137mm)