Tifosi Optics Interchangeable Sunglasses feature de-centered shatterproof polycarbonate lenses to virtually eliminate distortion, give sharp peripheral vision, and offer 100% protection from harmful UVA/UVB rays, bugs, rocks, or whatever comes your way. Lens installation/removal is fast-and-easy. This is the technology to choose if you enjoy spinning-down the open road, jogging to your favorite beats, or flying through the shaded woods. Dial in your Tifosi interchangeable sunglasses with smoke lenses when the sun is high and the skies deep blue, ac red for sunny to cloudy conditions, and clear for low light. The Podium S Sunglasses Frame is made of Grilamid TR-90, a homo-polyamide nylon characterized by an extremely high alternative bending strength, low density, and high resistance to chemical and UV damage. The Podium S has hydrophilic rubber ear and nose pieces for a no-slip fit. The Sunglasses with dimensions of lens edge to lens edge 5.2" (132mm) and temple arm to temple arm 5.8" (148mm) with a Sunglasses weight of 1oz (29g). Sunglasses have adjustable ear and nose pieces for a customizable, comfortable fit. The Tifosi Podium S Sunglasses fit medium to large faces. Tifosi Sunglasses are covered by a limited lifetime warranty. Sunglasses come with protective cleaning bag and case.