Pumped with the original dimensions of the GASCAN with the pulse of the street fueling a one-of-a-kind. Now the aggressive design language called Oakley SQUARE O brings a new urban contender. GASCAN S turns down the volume of O MATTER frame material reducing the overall size with some harder lines that make it streetwise. Metal icons tag it as true Oakley. HIGH DEFINITION OPTICS keeps visual performance at full tilt and impact protection meets all ANSI Z87.1 standards.Tungsten Iridium Lens: Medium to bright light. Sharpens visual acuity and improves depth perception. Features a subtle Iridium coating to reduce glare and tune contrast.