One size does not fit all, so Oakley has expanded the popular Flight Deck family to include a medium size. Inspired by the helmet visors of fighter pilots, Flight Deck M maximises your field of vision so you don't miss a single target that comes your way. 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.