A performance goggle that transcends traditional design. Inspired by the unique bird nest architectural design of Beijing's main stadium for 2008. The structural elements of the Nest Pro's frame creates a unique grid-like effect, similar to the way a bird's nest is intertwined for support. TPR frame/gasket features dual-injected system with over-molded nosebridge. Patent Pending Nest Frame Technology. 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 Cellulose Propionate (CP) lenses feature imbedded anti-fog properties and are UV protected. Soft TPR gaskets for comfortable, water-tight fit.