The “irregular” form is suitable for those who identify themselves with the extraordinary. This design cannot be pigeonholed, but fortunately the right case is also supplied. Plastic frames like these combine durability and are comfortable to wear. The OO9018 is a very snug fit on the ears and nose. Functionally, you are, of course, on the safe side, too. With 100% UV eye protection, the sun can immediately start shining. Whether driving or out on the slopes, your own safety sometimes depends on your angle of vision. The polarizing lenses in this model block the glare from reflecting surfaces, such as water, glass or snow and best sight is guaranteed.