Lang Yarns Air knitting yarn from the Wool Addicts Collection is an airy, fluffy yarn with a nylon core. It is composed of 84% merino wool and 16% nylon with an anti-felting treatment. It knits on knitting needles 5 and 5.5 mm (US 8-9 / UK 6-5) for a gauge of 15 stitches and 25 rows.
In a 50 gram (1.75 oz) ball there are about 125 meters (136 yd) so plan on:
450g = 9 balls for men size M
300g = 6 balls for women size M
200g = 4 balls for children 10 yrs.
Machine wash at 30°C (86°F) with detergent for wool without fabric softener.