The Cusp S sports performance sunglasses are designed for cyclists and runners. Featuring a lightweight semi-rimless frame, Revo Cusp S sunglasses stay in place even when you’re breaking a sweat thanks to the Elastomeric Nosepads and rubber pads on the inside of the temples that comfortably hug your face. The Revo SurfacePro Protection System includes Revo exclusive mirror coatings, Revo Back-Surface Protection Coating, authentic Revo hydrophobic coating, and authentic Revo oleophobic coating. The Revo exclusive mirror coatings has 3-6 layers of high-tech, performance mirror coatings based on NASA lens technology used for satellite protection and Revo back-surface protection coating. The authentic Revo hydrophobic coating is a permanent coating on the back of the lens that repels water and sweat while the authentic Revo oleophobic coating is a permanent coating on the front of the lens that repels oil and fingerprints.