"Fortissima Socka Darning Thread" by Schoeller + Stahl is a plied reinforcement thread of 75% wool and 25% nylon. It is designed to carry along with sock yarn for reinforcing heels and toes, and for patching hand knit socks.
Shade Cards
Fall 2009
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Schoeller Stahl - Fortissima Socka Darning Thread - Fall 2009