these are chunky. the yarn I'm using makes a thick, warm, durable sock but sacrifices a little softness. 

Softer socks are usually made with finer wools which can be a nice treat for your feet but I find that they develop holes more easily since the fiber isn't as durable and the yarn is often mixed with nylon to make it stronger but will often shred the wool in the process. 

I hope that answers your question