The Oakley Portal X sunglasses in polished black with Prizm ruby polarised lenses feature a sporty, rectangular shape designed for lasting comfort. Designed with the modern consumer in mind, the Portal X is a versatile style suitable for all sports on-road and field. Offering maximum grip from Oakley's exclusive Unobtainium grip temples and nose pads, this style is favoured by runners for its sports functionality and a laid-back aesthetic.