Hoping one of you S&B sleuths will see this in your travels.
Tried it in a 14 but it didn't fit and by then there were no 12s left and it seems to be sold out in most sizes in all the shops. I think a 12 will be the perfect fit but a 10 might be worth a try. I have an eBay search going but no luck so far.
Aargh, I should have bought it when I first saw it!!