VonZipper Skitch aviator polarized sunglasses are made from optical quality alloy and held together with stainless steel optical hinges. The base 8 spherical impact resistant polycarbonate polarized lenses will protect your eyes with 100% UV protection. Silicone nose pads will keep these shades sitting on your face.VonZipper's VP3 Tri-Motion Polarized lenses are the optically correct choice for all of your outdoor activities and pursuits of daydreams. Premium sunglass case included. Imported.