"Design is not just art, it is the elegance of function." The P'8931 Porsche Design glasses reflect this quote from F.A. Porsche perfectly—in the form of an innovative spring hinge, which is both a design and functional element. The Air Spring Flex Zone is the result of further development of the spring hinge, ensuring maximum comfort through ideal reduction of lateral pressure. Whilst appearing purist at first glance, its wide range of technical refinements become apparent when taking a closer look. Various materials and colors for the Flex Zone and temples underline the form and function. RXP® temple ends ensure an even more lightweight design and greater flexibility. The design also clearly carries the DNA of Porsche Design. The wholly titanium frame has a three-dimensional effect due to its striking bridge whilst lenses in a modern interpretation of the aviator style underline the exclusive character of these sunglasses. Available in colorway A (black/green pol. XTR blue gradient) with innovative Vision Drive® Polarized XTR lens technology, and in colorway C (gold/grey pol.) with Vision Drive® Polarized XTR lenses.