Lang Yarns Fiora multicolored novelty knitting yarn is composed of 42% cotton, 42% acrylic, 16% viscose and knits on knitting needles 4-4.5 mm (US 5-6 / UK 8-7) for a gauge of 19 st. and 32 rows.
In a 50g (1.75 oz) ball there are about 145 m (158 yds) so for quantities plan:
550g = 11 balls for Men size M
400g = 8 balls for Women size M
300g = 6 balls for Children 10 yrs
Machine wash 30°C (86°F) with gentle detergent for wool without fabric softener.