Here's a new exoctic blend for a toasty warm sock.
Possum fur is unique in that it is hollow. This means that the fur is light yet able to retain warmth. When spun with merino wool, a light, stable, and strong yarn is produced with superior heat retaining properties.
These socks are very light weight while lofty - a little bulkier than a standard shoe sock, but less than a gym type sock.
I knit these by hand with my antique sock knitter.
Machine wash on delicate cool; dry flat; no bleach.