Lang Yarns London knitting yarn, a robust yarn, is a yarn composed of 70% virgin wool, 30% acrylic and knits with knitting needles 4.5-5 mm (US 7-8 / UK 7-6) for a gauge of 16 stitches and 23 rows.
There are about 100 meters (109 yd) in a 50 gram (1.75 oz) ball so plan to knit:
550 g = 11 balls for men size M
400 g = 8 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.