Lang Yarns Sunshine knitting yarn from the Wool Addicts collection is a yarn composed of 100% cotton and knits on knitting needles 4.5-5 mm (US 6-7 / UK 7-6) for a gauge of 18 stitches and 24 rows.
There are about 95 meters (103 yd) in a 50 gram (1.75 oz) ball so plan on:
600 g = 12 balls for Men size M
450 g = 9 balls for Women size M
300 g = 6 balls for Children 10 yrs.
Machine wash at 30°C (86°F) with detergent for wool without softener, low iron.