The Nest Pro Goggles are performance goggles that transcend traditional design; Inspired by the unique bird nest architectural design of The Beijing Olympics" main stadium, the structural elements of the LGNST Nest Pro"s frame creates a unique grid-like effect, similar to the way a bird"s nest is intertwined for support, while a TPR frame/gasket features a dual-injected system with over-molded nose bridge; An ideal goggle choice for performance, training, open water and triathlon applications; Polypropylene over-mold nest frame provides unique high-tech structure design; Headstrap features patented Glide Clip system which allows easy on-head adjustment; Double VTS (Varied Tensile Strength) silicone headstrap conforms to side of head while flat back straps allow for secure fit; Wide peripheral Polycarbonate (PC) lenses feature imbedded anti-fog properties and are UV protected; Soft TPR gaskets for comfortable, water-tight fit; Patent pending Nest Frame Technology.