The "IM-101" is a re-production model of sunglasses released in 1985, and its combination of simple figures in "one line" and "two circles" is as clear as a graphic design. With blue lenses, these sunglasses strongly mirror the impression of the original model from the 1980s while faithfully reproducing the design of the time, but are made to modern specifications, using pure titanium and plastic lenses to reduce weight, improve suppleness, and increase rigidity. The non-nickel-plating on the titanium materials make this an allergy-free item. [Color Details] Front: Brushed silver Metal: Brushed silver Lenses: Blue [Visible Light Transmittance] 20%