on the nose part of the frame take it from the front and sort of twist it down. If you hear a little click or pop. Or you can see a notch in the lens then they're removable. If you hear a crack you know you've gone too far.
~~Phunkin' Phatt Phreerider~~
i just bought a new pair yesterday with mike... um gionini or something like that.. mine are gold tinted.. so now all you eastern ontario ppl. who have seen my old goggles cant laugh at me for having 'speed' goggles.. these goggles are sweet