One size doesn't fit all, so Oakley has added a medium size to the popular Flight Deck family. Inspired by the helmet visors of fighter pilots, the Flight Deck M maximises your field of vision so you don't miss a single target. Designed for seamless compatibility, it gives you the flexibility to choose the helmet that suits your style. Oakley's Ridgelock technology makes lens replacement quick and easy, while ensuring a complete lens seal to prevent harsh conditions from penetrating your goggle.