SERENGETI® The most advance Eyewear, Model: Silio 8923, Trivex, Flexible, Special Spectral Control® Anti- Fog Photochromic Polarised Trivex PHD2.0 CPG lenses. *Brand-new & Unused designer sunglasses, All original accessories included. SERENGETI, Pushing the boundaries of techniques with their international Silmo d'Or Awarded lens technology. Serengeti's patented Spectral Control® Photochromic, Polarised mineral lenses exceeds the majority of lenses when it comes to, pristine HD viewing quality, lens techniques, protection and filtration. This Silio 8923 Trivex model is equipped with the V.2 PHD™ CPG ® Grey Trivex lenses, which offers a category 2 to 3 protection. A Patented Polarisation filter, and a smart & improved photochromatic function. The PhD 2.0 lenses darken faster in warm temperatures due to a lower percentage of light transmission, while they lighten in cold temperatures. Serengeti's exclusive photochromatic Polar PhD™ lenses are designed to deliver superior optical clarity and contrast. The lenses automatically adapt to changing light conditions. The improved water and grease repellent coating on the outside of the lens helps to repel water, fingerprints and dirt. Lenses can fog up when the temperature changes. To prevent this, a new coating has been applied to the inside for better visibility. This high-quality anti-fog coating can be reactivated again and again by cleaning the lens with water. The water activates the molecules in the coating. Brand / Designer: Serengeti Lens color: CPG8NF, Grey / Dark Grey Lens effect: - Spectral Control® - V.2 improved photochromatic function - Patented polarisation - Dirt repellant coating - Anti-fog coating Composition: Trivex, Vulcanised rubber leg tips, Gender: Men / Women / Unisex Dimensions / Size: 67-15-132 Condition: Brand New Model: Silio - 8923 This lot Contains: - Serengeti, Silio 8923 sunglasses - Official Serengeti "the most advance eyewear" handcrafted ziplock case - Official "the most advance eyewear" overbox with sleeve - Serengeti Warranty / authenticity / documentation booklet - Sealed Serengeti cleaning cloth * All photo's are made with professional light, in reality the lenses and frame are slightly darker. *All product, quality and technical information is sourced straight from the official Serengeti description. We can not be held liable for any inaccuracies.