Lang Yarns Water knitting yarn is a a crimped yarn composed of 100% baby alpaca that knits on knitting needles 4.5-5 mm for a gauge of 17 st. and 24 rows.
In a 50g (1.75 oz) ball there are about 140 m (153 yd) so for quantities plan:
400g = 8 balls for men size M
300g = 6 balls for women size M
200g = 4 balls for children 10 yrs
Machine washable at 30°C (86°F) with detergent for delicate textiles without softener.