Porsche adds to its Heritage

The Heritage 40Y Edition P'8478 sunglass is the latest limited edition model from Porsche Design to celebrate the brand's 40th anniversary. The manufacturer said the original P'8478 was the world's first pair of sunglasses with replaceable lenses.

The sand-blasted titanium aviator-styled sunglass is based on the original design, but has been brought up to date with high quality materials and improvements in manufacturing. Each pair is laser marked '40Y Edition' and has the 40Y emblem on the bridge. Brown, mirrored silver and graduated tint lenses are available.

Only 10,000 pairs of the 40Y Edition have been produced, available in four sizes - small, medium, large and extra-large.