Depending on what kind of wedding your son and his soon-to-be wife has decided on for their big day, you need to shop for Mother Of The Groom Dresses Chicago that goes along with the style of the wedding. It is essential to wear a formal evening gown. Look for heavier fabrics, including silk and velvet, which will drape well over your curves without making you look heavier than you are. Embellishments like beading or rhinestones on the dress are also appropriate for plus-size mother of the groom dresses.