When you think about Nike eyewear, the word ‘bookish\' doesn\'t instantly spring to mind. But for a sports brand that\'s all about power, performance and agility, these semi-rimless metal specs are certainly that. The 4260 240s for men have an iced mocha brown, super slim metal frame with a matt grey plastic arm and subtle grey swoosh. The slightly curved ear tip has a textured inner for improved grip. These spectacles are serious, sombre and subtle. If you want a pair that scream ‘I\'m a fun-machine!\' keep on scrolling.