TYR Nest Pro Metallizeed The Nest Pro Metallized 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 LGNSTM Nest Pro's™ frame creates a unique grid-like effect, similar to the way a bird's nest is intertwined for support. Metallized lenses reflect light & reduce glare, providing excellent peripheral vision, while anti-fog, construction enhances protection. An ideal goggle choice for performance, training, open water & triathlon applications. Specs 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 & are UV protected Soft TPR gaskets for comfortable, water-tight fit Patent pending Nest Frame Technology