What shape sunglasses for my face - big forehead and long face???

[bountyicecream]

Just that really. What shape sunglasses do you think will most likely flatter me?

Oh dear. It appears as (I've always suspected) that my face just doesn't 'do' sunglasses!

Another long face here, big square ones suit me best I think. You need a good old trying on session

Aw thanks sofa. I don't have much free time atm so was hoping to do online buying!