Shell: 100% Polyester; Lining: 100% PolyesterImportedButton closureSize Small fits US 4-6, Medium fits US 8-10, Large fits US 12-14, X-Large fits US 16-18, XX-Large fits US 20-22.This business casual blazer comes with one button closure.The jacket also features long sleeves and padded shoulders that gives you a more formal and well-structured look.The classy suit outerwear has some functional details such as a back slit which allows you to move freely and two side pockets that are great for keeping your small valuables.Perfect for wearing to work, casual, business, business casual, formal, etc.