You may have seen these on the heads of those flipping maniacs, the Lacondeguy brothers. The goggle frame is made of the usual soft plastic, but is awesome quality.
The foam-shielded vents extend virtually all the way around the frame for excellent air circulation. Steaming-up is further resisted by a Clima Cool double-glazed lens, which really is excellent.
The goggle is let down by its diminutive size. The narrow vision slot doesn’t encroach on your peripheral vision when it’s positioned correctly, but it’s so small that your full-face helmet will struggle to hold it in place – it moves up your face in the rough.