When wearing an A-line illusion neckline wedding dress, it's advisable to consider an updo or side style for your hair. These hairstyles allow the illusion back or other back details of the dress to be showcased. Keeping your hair off the shoulders and back will ensure that the intricate design of the dress is not hidden. Discussing hairstyle options with your hairstylist can help you find the perfect style to complement your A-line illusion neckline gown.