Hi
Can anyone remind me how to change lense in the original eyeshades?

Where to hold the frame, where to pop the lense.

I have a pair of yellow/grey that I want to replace the lense with a fire vented.

Cheers

Pull the top and bottoms apart. The lens doesn't attach to the sides, so once that's done, you can bend it out.

I always wondered on this as well. Do you hold the frame at the midpoint to pull the top and bottoms? Or would you pull the top and bottoms towards one side to pop one side first, then move to the other side?

Its pretty easy
I done what Dann said and the frames are really flexible so i pulled the top up, popped the frame out and then to replace i placed the base of the lense in first and moved the top frame over.

Easier than changing lenses in m frames and you dont feel like your going to bust a frame in the process.

Now Ive got a yellow/fire vented :)