Adding A Product Feature To An Invoice

Hi,



I have a wine merchant website which display's bottles of wine, now each wine has a set of features setup in cs-cart, such as alcohol, vintage etc etc



I would like to display a single feaure onto the order invoice, so that the customer knows which Vintage he/she bought.



I know that you can display the Options on an invoice, but is it possible to display the features in the same way.



Let me know if this needs explaining further.



Thanks



Alex