Count
A unit of measurement used to measure the thickness of a fiber or yarn. Expressed by the length of the fiber or yarn per unit weight. The lower the count, the thicker the fiber or yarn. 40S means 40 sticks.

Density
Refers to the number of warps and wefts arranged per square inch, called the warp and weft density. It is generally expressed as "the number of warp yarns * the number of weft yarns". 110*90 means 11 warps and 90 wefts.

Width
Refers to the effective width of the fabric, usually expressed in inches or centimeters, 36 inches, 44 inches, 56-60 inches and so on. The width is generally marked after the density.

Weight
It is the weight of fabric per square meter, the unit is "gram/square meter (g/㎡)". According to the editor of Maigoo, the higher the weight of the fabric, the better the quality and the more expensive it is. The weight of denim fabric is generally expressed in "ounces (OZ)".