From the ball band:
Machine Wash wool cycle 30 degrees.
4-5 mm needle.

Tension: 17 stitches 25 rows to 10x10cm.

Elle Aran is 100% pure wool, machine washable at 30 degrees in a wool cycle.

(Note - This yarn is distinct from Elle Traditional Aran KNIT which is a blend of wool and superacrylic.)