- 100% Acrylic- Comfortable sweater: Good quality knit, good capability of tenderness and air permeability, which make you feel good and comfortable when wearing- You can pair this button-up sweater with navy blue chino/ jeans for a smart casual- Pair with a nice pair of dress shoes for more of a business casual look, giving you an additional style outside of wearing a suit and tie.- Size: Please refer to the size chart image on the left images and purchase the item.