The correct system of count used for cotton is the Indirect system. Here's why:
The indirect system is employed to measure the linear density of fibers like cotton. In this method, the count is inversely related to the weight of the fiber; a higher count number means the fiber is finer, while a lower count indicates that the fiber is coarser.
Unlike direct systems (such as Kilotex and Militex) that express weight per unit length, the indirect system specifies the length of a fixed weight of yarn. Thus, for materials like cotton, where indirect count systems such as the English count (Ne) are often used, understanding this inverse relationship between count and thickness is essential.