I've recently splashed out on a pair of progressive glasses. They're primarily used for reading though I do get a very slight improvement with mid to long range vision.

There are time where I will benefit from using sunglasses while also getting the advantage of the progressive lenses. However the amount of use doesn't justify getting progressive sunglasses.  I'd be better of with a second pair of clear progressives.

I've been looking around for pairs of clip ons. There's very little choice in the local Hamilton shops I've been to so far.

I like the idea of the the magnetic ones rather than the spring clip style, though the spring clip style would do as a last resort.

I also need them to be non polarised for work.

Have any Geekzoners had experience with magentic clip ons? Will they fit almost any metal frame that is magnetic? Do you need to buy a special frame to suit?

Where can I find non polarised lenses?

Thanks for any help.