One size doesn't fit all, so Oakley has expanded its acclaimed Flight Deck range with a medium size. Inspired by the helmet visors of fighter pilots, the Flight Deck M maximizes your field of vision so you don't miss a single targeted opportunity. It has been designed for optimum compatibility, giving you the freedom to choose the helmet that best suits your style. The masks feature Oakley's Ridgelock technology, lenses that can be changed quickly and easily, and a full seal to keep water out.