Commonly used fabrics for pajamas and cultural shirts include: polyester-cotton hexagonal, four-corner mesh, herringbone pattern, composite rib, cotton jersey, polyester-cotton single and double-sided, pure cotton, striped mesh, etc. It is not easy to deform, but it is less comfortable to wear than pure cotton. The characteristics of common polyester-cotton fabrics: it is not easy to be deformed after washing, and it feels thick and soft, but it is slightly less comfortable to wear than pure cotton. Common polyester cotton is 81% cotton, 19% polyester or 60% cotton, and 40% polyester. The characteristics of pure cotton fabric fabrics: good hand feel, comfortable to wear and environmentally friendly. The weight is between 170 grams and 300 grams. Too thick will cause sultry and too thin will be very transparent. Generally choose between 170-270 grams and the number of counts is average. It is about 22 and 31. It refers to the average number of cotton fiber length. The higher the number, the softer. The veil is divided into normal yarn, semi-finished yarn and refined yarn. The surface of normal yarn fabrics will be rougher, especially the color comparison The dark fabric will have white yarn points. The surface of the fine yarn fabric is relatively neat and soft to the touch.