Only the best blend of style and durability come from Nike products, and their sunglasses are no different. Quality materials and long-wearing comfort are Nike hallmarks. The high-tech Siege model model features lightweight frame design. The Nike Vision program has had products worn by athletes, the Siege Swift E has many great features and helps the serious athlete in many respects, they offer a superior fit with Nike's secure wrap temples that grip the back of the head. They fit the natural curvature of a person's head without painful pinching. The arms are adjustable, so you can bend them to your own head size. With Nike's expert design and technology air circulates around the nose to prevent lens fogging, the design also decreases slippage from sweat. The lens also utilises Nike's Max Optics, in which the patented design gives precise vision straight ahead, in your peripherals, and over your shoulder. The lenses are part of the Interchange System, which allows you to easily switch out the lens depending on the conditions you are in. The other lens will then stay locked in place. Made from polycarbonate, the lenses are impact and scratch resistant. No-slip silicone - nosepads have wire cores for customisable width. Full length rubberised temples - grip securely and contain wire cores for a fully-adjustable fit. Flying lens design - minimises fogging on those outdoor runs. High-impact lenses - for clarity and durability. Nike-exclusive Speed Tint lens - with Silver Flash enhances visual comfort under changing light and shadow. High quality lenses - are distortion-free and provide 100% UV protection. Additional interchange lenses - can be used for maximum sport performance in all light conditions. 100% UVA and UVB protection - impact resistance lenses. Nike Max Lens Technology Precise visual information at all angles of view. Great sunglasses for the serious athlete, full of Nike expertise, your eyes will be protected while you run in style.

No-slip silicone - nosepads have wire cores for customisable width.

Full length rubberised temples - grip securely and contain wire cores for a fully-adjustab

Flying lens design - minimises fogging on those outdoor runs.

High-impact lenses - for clarity and durability.

Nike-exclusive Speed Tint lens - with Silver Flash enhances visual comfort under changing