FIBER macgyver's Merino Nylon Fingering / Sock Weight Yarn is a multi-ply fingering or sock weight yarn made of 80% Wool and 20% Nylon. Each skein is 437 yards (400 meters), 100 grams. This yarn is superwash treated. The nylon provides strength and durability, which helps ensure your creations will last a long time! This yarn is perfect for a pair of socks or a shawl.