Lang Yarns Jawoll Twin knitting yarn is a yarn suitable for socks and sweaters composed of 75% wool and 25% nylon.
It knits on knitting needles 2.5-3.5 mm (US 2-4 / UK 11-9) for a gauge of 30 st. and 41 rows.
There are about 210 m (229 yd) in a 50g (1.75 oz) ball so allow:
500g = 10 balls for men size M
450g = 9 balls for women size M
300g = 6 balls for children 10 yrs
100g = 2 for socks
Machine wash at 40°C (104°F) with wool detergent without softener.