Lang Yarns Trust knitting yarn is a rustic yarn composed of 56% alpaca wool, 45% virgin wool and knits on knitting needles 8 mm (US 11 / UK 0) for a gauge of 11 stitches and 15 rows.
There are about 75 meters (82 yd) in a 50 gram (1.75 oz) ball so plan on:
550 g = 11 balls for Men size M
400 g = 8 balls for Women size M
300 g = 6 balls for Children 10 yrs.
Hand wash with detergent for wool without softener, iron at low temperature.