Congratulations on your impending graduation. As you have selected 'Previous Degree held' you have the option of graduating in your previous degree regalia, which most graduates choose to do. When selecting your hood, please tick 'Add hood details' and give a description of your hood colour/s.
Bachelor gowns are worn according to height. The following is a guide only as every customer is given a personal fitting when collecting regalia, so if you are not sure of your height just leave the gown size on the current selection.