Antique Silver/Smoke Grey | Polarized CR39 Grey Gradient Lens 100% Made In Japan with high quality Japanese componentry. Aerospace Grade Japanese Titanium provides durability with a featherweight feel. 1mm insert provides a new level of structure and protection to the lens, as well as, offers an additional layer of color variation with both bold contrasting and subtle monochrome colorways. Organic SALT. pattern is custom stamped on inside of temple tips and nose pads adding a unique identity, and providing more grip against the skin to increase the fit retention of the frame. SALT. Polarized optical grade Glass and CR-39 lenses. SALT. anti-reflective, hydrophobic, and oleophobic coatings reduce glare, repel dirt & water, and protect from harmful light rays to ensure the highest optical clarity and performance.