Women s Dressy Casual Tuxedo Classic Vest Fully Lined Versatile Suit Waistcoat Versatile Vest: This waistcoat is a professional & distinguished uniform piece it can be worn buttoned for formal occasions or left undone for a casual look depending on your venue requirement. Very chic and elegant. No matter your style you can easily wear waistcoats. Team up with dress shirts dress pants blazers for work tee short skirt tight-fitting trousers on summer leather jacket or plaid skirt or bohemian style dress on fall.