The frameless Falcon has a futuristic look which, well... let's just say it wasn't universally liked in the BikeRadar office.
The large wraparound lens sits extremely close to the face and has a 'brow guard' – essentially a narrow shelf – at the top to block light from above.
Nifty hinge mechanisms at the sides of the lens allow you to change the angle and length of the arms to achieve a better fit.
If you don't mind looking like a cyborg and are on a tight budget, these could be just the thing. They're available with six different lenses and weigh just 24g.