Question: what is the difference between 4 ply and dk wool?
Answer: A4-ply Yarn is spun from four strands, and it is equivalent to medium-weight thread. The double-knit wool can also be 4-ply. The ply of Yarn does not determine its quality or durability, but it may determine its strength and smoothness. It is, however, necessary to note that a poorly constructed thread made be weak.