Lang Yarns Italian Tweed knitting yarn, color 0011, is composed of 50% virgin wool, 25% silk and 25% nylon and knits on knitting needles 4-4.5 mm (US 5-6 / UK 8-7) for a gauge of 17 st. and 24 rows.
In a 50g (1.75 oz) ball there are about 135 m (147 yd) so for quantities of yarn plan on:
600 g = 12 balls for men size M
400 g = 8 balls for women size M
250 g = 5 balls for children 10 yrs
Machine wash 30°C (86°F) with detergent for wool without fabric softener.