Shirt buttons are very likely the most commonly used buttons in the world. Their most important feature is their size. Standard shirt buttons are sizes 14, 16, 18 and 20, but we often have special orders from customers for sizes 12, 13, 15, 17 and 19. Many kinds of materials may be used in the production of buttons, but the most favoured one seems to be polyester due to the low price and the wide range of variation it offers.