Tifosi eyewear alliant race neon interchangeable 2018aerodynamic, high performance sporting glasses with a large, single, ventilated lens with glare guard technology plus an adjustable and flexible design. Ideal for cyclists, runners, and endurance athletes.lenstifosi eyewears alliant race sporting sunglasses come with a large single lens with an optically decentred design that pushes the limits of your performance optics with an increased peripheral vision. The lens comes with a ventilated design that keeps it from fogging up in hot and humid conditions. Glare guard technology protects your vision from harmful uv rays and reflected light glare.framethe grilamid tr90 frame comes with a lightweight and flexible construction for an ultra comfortable fit whilst retaining a great deal of strength and durability. For even further comfort and stabilisation the nose pads and temple tips are adjustable and are coated in a hydrophilic rubber. Featuresventilated lenses100% uv protectionpolycarbonate lensesoptically lens designhydrophilic rubber coated nose pads and temple tipsgrilamid tr90 frameadjustable ear pieces and nose padsglare guard lens technologycomes with protective casebuy tifosi eyewear from chain reaction cycles, the world's largest online bike store.