we don't really have size 2 in the UK, that would be TINY. No-one usually wears smaller than a size 6 in the UK, which it petite, so I'd hazard a guess that if it is in the US size, it'll be about a 12 UK size (ish), or otherwise it may be in the UK size 6.P.s. as I'm writing this I'm realising your comment was submitted 4 months ago so I doubt it'll be helpful - but maybe it'll help someone else!