Sandnes Garn's SISU contains 80% wool and 20% nylon. Super wash treated, so suitable for machine washing. For the knitting of comfortable clothing for indoor and outdoor use, for both children and adults. A children's favorite under their jacket. Also used for durable socks in fine colors for the whole family. Meters per ball = 175 Fingering weight - uses 2.5-3 mm needles.