51% wool, 49% acrylic.

There are also older, smaller (1oz/28.35g) balls. Some of the labels say “Patons Fiona Wool & Orlon”. Fibre content is 50% wool, 50% acrylic, and yardage is approx. 102 yds.

yardage (not given on ball-band) is the average of two measured skeins.