Kona LIGHTWEIGHTCOMFORT SWEAT/CHEMICALRESISTANT NO-SLIP GEKO™ PADS 2 YEARWARRANTY FINGERPRINTRESISTANT MADE TOMOVE™ PREMIUM LENSESAND COATINGS NO PRESSUREPOINTS Lens Options LENS MATERIAL Polycarbonate Standard The highest quality PC with our world-class lens coatings: anti-reflective, anti-scratch, super-hydrophobic, oleophobic and fog resistant coatings. Lightweight, impact-resistant and 100% UV protection. Trivex Upgrade Features all of the benefits of our polycarbonate lenses but even more optically clear, both centrally and peripherally. Ultra- Lightweight Nylon The Kona’s TR 90 nylon frames are significantly lighter than industry-standard materials like acetate and polycarbonate without sacrificing strength or durability. Patented Fit and Retention System WON’T SLIP OFF YOUR FACE. And forget about those painful pressure points on your nose. Inspired by the soft but amazingly sticky feet of the Gecko, our patented GEKO™ fit and retention system features a proprietary elastomer for nose and temple pads that's hydrophilic, chemical resistant and supports multi-directional traction with comfort. No matter how sweaty you get and which way you move, bounce or shake, you’ll never have to worry about slippery frames sliding down your nose or falling off your face.