The grade of goat fiber is determined primarily by which two characteristics?

The grade of goat fiber, such as cashmere or mohair, is indeed determined primarily by fineness and length. Fineness refers to the diameter of the fiber, which significantly impacts its softness and overall quality. Finer fibers are typically more desirable because they feel softer against the skin and are more suitable for high-quality garments. Length is another critical characteristic because longer fibers can be spun into yarn more efficiently, resulting in stronger and smoother finished products. Together, these two characteristics play a vital role in assessing the quality of goat fiber and its market value, making them essential for grading purposes.