This is the un-spun single ply yarn that is the favorite of the native
Icelandic knitters for garments of all kinds. Similar to pencil roving,
it can be knitted with multiple strands held as one. Since Plötulopi is
an unspun yarn, it is fragile to knit; however, due to the length of
the fibers, it knits into a sweater that is both sturdy and soft.