They are very small Neversaydie. I am a 12/14 (depending on the brand and whether its a top or trousers) and I can just fit into a Zara "large" 
I do like some of their clothes though because, being Spanish, they are not churning out exactly the same things you find in all the other UK shops.
I have a lovely LBD I bought in Zara in Malaga years ago that still comes out of the cupboard every time I need a posh frock.
Shops and Cafes no longer here.
