Lang Yarns Poseidon knitting yarn is a yarn composed of 60% virgin wool, 40% acrylic and knits on knitting needles 4 mm (US 6 /UK 7) for a gauge of 14 stitches and 24 rows.
In a 50 gram (1.75 oz) ball there are about 90 meters (98 yd) so plan on:
550g = 11 balls for men size M
450g = 0 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.