Air 1 is part of the Revo Black collection, the next generation of Revo technology. Featuring the latest in Revo technology, Air 1 is crafted of 100% titanium and weighs less than 0.5 oz, making it the lightest Revo design ever made. The minimalist single-bridge rectangle shape offers panoramic views and gives the feeling of wearing nothing at all. Lightweight and impact-resistant, our photochromic lenses automatically lighten and darken in different light conditions to protect your vision and enhance clarity.