A device of measure and special purpose, the Dipstick is a performance piece ensuring lubrication. VonZipper Dipstick polarized sunglasses are handmade in Italy; the frame is crafted from nylon grilamid for maximum flexibility and held together with corrosion free Pop N' Lock cam hinges. The base 6 spherical impact resistant polycarbonate polarized lenses will protect your eyes with 100% UV protection. RGNS System: Here's where the rubber hits the road. If you wanna RIP, have lots of GRIP, with NO SLIP, our RGNS system features rubber nose pads and temple tips. Ether Collection: The Ether Collection is a full frontal assault on frames being technical without losing design creativity and edge. VP3 Tri-Motion Polarized: Durability without distortion. Extremely lightweight and ultra-impact resistant, VonZipper's Tri-Motion Polarized lenses are the optically correct choice for all of your outdoor activities and pursuits of daydreams. NOTE: Polarized lens on select color options.