WILL STAY PUT,ON THE ROUGHEST COURSES,IN THE TOUGHEST CONDITIONS Design evolved over a billion years. 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 falling off your face.