Opal Rainforest 17 is a beautiful self-patterning 4 ply sock yarn with a conscience - all the Rainforest collections raise money and awareness about the destruction and devastation occurring in our beautiful rainforests. To date, Opal has raised a fabulous 249,000 Euros!
https://www.sockenwolle.de/en/neues/translate-to-en-regenwald-projekt/
One ball will knit a pair of socks up to about a size 10 adult.
Brand: Opal
Name: Rainforest IIIV
Composition: 75% wool/25% nylon
Needle size: 2.5 mm
Ball Size: 100 grams
Metres per ball: 425 metres (464 yards)
Tension: 30 sts x 42 rows to 10cm
Care: Machine washable but do not tumble dry