I am thinking of buying this [[http://www.ebay.co.uk/itm/HOBBS-LAMBOURNE-NAVY-MULTI-JUMPER-DRESS-100-WOOL-SIZE-14-RRP-99-/170782251572?pt=UK_Women_s_Jumpers_Cardigans&hash=item27c36a5a34 dress]] from ebay. What is the sizing like? Are they about an average size 14 or cut a bit slimmer?