Question: what is the difference between 3 and 4 ply yarn?
Answer: 3-ply, also known as light fingering yarn is used for socks, shawls, babywear and fine knits. It creates a light, flexible fabric that works with lace stitches, and knits on a 2.75mm needle. 4-ply (fingering) yarn is perfect for shawls, lace work and fine knits with colourwork.