Lang Yarns Memory chain knitting yarn is composed of 88% extrafine merino wool, 12% nylon treated anti-felting and knits on knitting needles 6 and 7 mm (US 10- / UK 4-2) for a gauge of 16 stitches and 22 rows.
In a 50 gram (1.75 oz) ball there are from the collection Wooladdicts about 100 meters (109 yd) so plan on:
550g = 11 balls for men size M
400g = 8 balls for women size M
300g = 6 balls for children 10 yrs.
Machine washable at 30°C (86°F) with detergent for wool without softener.