Sunglasses Porsche 8478 has a second spare pair of lenses. It's very easy to change the lens in few seconds
Sunglasses Porsche Design 8478 in D color has
1) First pair Brown
2) Second pair G15 (light Mirror)
With a quick release , the lenses can exchanged for replacement lenses to be prepared for different lighting conditions.
The Sunglasses Porsche Design "exclusive sunglasses" is manufactured from high quality and extremely lightweight titanium and convinces with glasses that are made of scratch- resistant and unbreakable polycarbonate and provide 100 % UV protection.